PDF security features (#26)

- Support for adding and removing passwords
- Support for watermarks
- Dedicated page remover
- Support for PDF permissions
- Removed endpoint /home and replaced with /
- Code cleanups
- Fixed page titles

README.md

@@ -19,6 +19,9 @@ I will support and fix/add things to this if there is a demand [Discord](https:/
 - Add images to PDFs at specified locations.
 - Rotating PDFs in 90 degree increments.
 - Compressing PDFs to decrease their filesize.
+- Add and remove passwords
+- Set PDF Permissions
+- Add watermark(s)
 - Dark mode support.
 
 ## Technologies used

build.gradle

@@ -5,7 +5,7 @@ plugins {
 }
 
 group = 'stirling.software'
-version = '0.2.3'
+version = '0.3.0'
 sourceCompatibility = '17'
 
 repositories {

src/main/java/stirling/software/SPDF/controller/CompressController.java

@@ -25,6 +25,7 @@ import com.spire.pdf.exporting.PdfImageInfo;
 import com.spire.pdf.graphics.PdfBitmap;
 
 import stirling.software.SPDF.utils.PdfUtils;
+
 //import com.spire.pdf.*;
 @Controller
 public class CompressController {
@@ -40,48 +41,34 @@ public class CompressController {
 	@PostMapping("/compress-pdf")
 	public ResponseEntity<byte[]> compressPDF(@RequestParam("fileInput") MultipartFile pdfFile,
 			@RequestParam("imageCompressionLevel") String imageCompressionLevel) throws IOException {
-		
 
-		//Load a sample PDF document
-        PdfDocument document = new PdfDocument();
-        document.loadFromBytes(pdfFile.getBytes());
-        
-        //Compress PDF
-        document.getFileInfo().setIncrementalUpdate(false);
-        document.setCompressionLevel(PdfCompressionLevel.Best);
-        
-        //compress PDF Images
-        for (int i = 0; i < document.getPages().getCount(); i++) {
+		// Load a sample PDF document
+		PdfDocument document = new PdfDocument();
+		document.loadFromBytes(pdfFile.getBytes());
 
-            PdfPageBase page = document.getPages().get(i);
-            PdfImageInfo[] images = page.getImagesInfo();
-            if (images != null && images.length > 0)
-                for (int j = 0; j < images.length; j++) {
-                    PdfImageInfo image = images[j];
-                    PdfBitmap bp = new PdfBitmap(image.getImage());
-                    //bp.setPngDirectToJpeg(true);
-                    bp.setQuality(Integer.valueOf(imageCompressionLevel));
+		// Compress PDF
+		document.getFileInfo().setIncrementalUpdate(false);
+		document.setCompressionLevel(PdfCompressionLevel.Best);
 
-                    page.replaceImage(j, bp);
+		// compress PDF Images
+		for (int i = 0; i < document.getPages().getCount(); i++) {
 
-                }
-        }
-        
-     // Save the rearranged PDF to a ByteArrayOutputStream
-	ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
-	document.saveToStream(outputStream);
+			PdfPageBase page = document.getPages().get(i);
+			PdfImageInfo[] images = page.getImagesInfo();
+			if (images != null && images.length > 0)
+				for (int j = 0; j < images.length; j++) {
+					PdfImageInfo image = images[j];
+					PdfBitmap bp = new PdfBitmap(image.getImage());
+					// bp.setPngDirectToJpeg(true);
+					bp.setQuality(Integer.valueOf(imageCompressionLevel));
 
-	// Close the original document
-	document.close();
+					page.replaceImage(j, bp);
 
-	// Prepare the response headers
-	HttpHeaders headers = new HttpHeaders();
-	headers.setContentType(MediaType.APPLICATION_PDF);
-	headers.setContentDispositionFormData("attachment", "compressed.pdf");
-	headers.setContentLength(outputStream.size());
+				}
+		}
+
+		return PdfUtils.pdfDocToWebResponse(document, pdfFile.getName() + "_compressed.pdf");
 
-	// Return the response with the PDF data and headers
-	return new ResponseEntity<>(outputStream.toByteArray(), headers, HttpStatus.OK);
 	}
 
 }

src/main/java/stirling/software/SPDF/controller/MergeController.java

@@ -0,0 +1,77 @@
+package stirling.software.SPDF.controller;
+
+import java.io.ByteArrayInputStream;
+import java.io.ByteArrayOutputStream;
+import java.io.IOException;
+import java.util.ArrayList;
+import java.util.List;
+
+import org.apache.pdfbox.pdmodel.PDDocument;
+import org.apache.pdfbox.pdmodel.PDPage;
+import org.apache.pdfbox.pdmodel.PDPageTree;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.core.io.InputStreamResource;
+import org.springframework.http.MediaType;
+import org.springframework.http.ResponseEntity;
+import org.springframework.stereotype.Controller;
+import org.springframework.ui.Model;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.RequestParam;
+import org.springframework.web.multipart.MultipartFile;
+
+@Controller
+public class MergeController {
+
+	private static final Logger logger = LoggerFactory.getLogger(MergeController.class);
+
+	@GetMapping("/merge-pdfs")
+	public String hello(Model model) {
+		model.addAttribute("currentPage", "merge-pdfs");
+		return "merge-pdfs";
+	}
+
+	@PostMapping("/merge-pdfs")
+	public ResponseEntity<InputStreamResource> mergePdfs(@RequestParam("fileInput") MultipartFile[] files)
+			throws IOException {
+		// Read the input PDF files into PDDocument objects
+		List<PDDocument> documents = new ArrayList<>();
+
+		// Loop through the files array and read each file into a PDDocument
+		for (MultipartFile file : files) {
+			documents.add(PDDocument.load(file.getInputStream()));
+		}
+
+		PDDocument mergedDoc = mergeDocuments(documents);
+		ByteArrayOutputStream byteArrayOutputStream = new ByteArrayOutputStream();
+		mergedDoc.save(byteArrayOutputStream);
+		mergedDoc.close();
+
+		// Create an InputStreamResource from the merged PDF
+		InputStreamResource resource = new InputStreamResource(
+				new ByteArrayInputStream(byteArrayOutputStream.toByteArray()));
+
+		// Return the merged PDF as a response
+		return ResponseEntity.ok().contentType(MediaType.APPLICATION_PDF).body(resource);
+	}
+
+	private PDDocument mergeDocuments(List<PDDocument> documents) throws IOException {
+		// Create a new empty document
+		PDDocument mergedDoc = new PDDocument();
+
+		// Iterate over the list of documents and add their pages to the merged document
+		for (PDDocument doc : documents) {
+			// Get all pages from the current document
+			PDPageTree pages = doc.getPages();
+			// Iterate over the pages and add them to the merged document
+			for (PDPage page : pages) {
+				mergedDoc.addPage(page);
+			}
+		}
+
+		// Return the merged document
+		return mergedDoc;
+	}
+
+}

src/main/java/stirling/software/SPDF/controller/OverlayImageController.java

@@ -36,11 +36,8 @@ public class OverlayImageController {
 			byte[] pdfBytes = pdfFile.getBytes();
 			byte[] imageBytes = imageFile.getBytes();
 			byte[] result = PdfUtils.overlayImage(pdfBytes, imageBytes, x, y);
-			HttpHeaders headers = new HttpHeaders();
-			headers.setContentType(MediaType.APPLICATION_PDF);
-			headers.setContentDispositionFormData("attachment", "overlayed.pdf");
-			headers.setCacheControl("must-revalidate, post-check=0, pre-check=0");
-			return new ResponseEntity<>(result, headers, HttpStatus.OK);
+
+			return PdfUtils.bytesToWebResponse(result, pdfFile.getName() + "_overlayed.pdf");
 		} catch (IOException e) {
 			logger.error("Failed to add image to PDF", e);
 			return new ResponseEntity<>(HttpStatus.BAD_REQUEST);

src/main/java/stirling/software/SPDF/controller/PdfController.java

@@ -26,63 +26,18 @@ public class PdfController {
 
 	private static final Logger logger = LoggerFactory.getLogger(PdfController.class);
 
-	@GetMapping("/")
-	public String root(Model model) {
-		return "redirect:/home";
-	}
-
-	@GetMapping("/merge-pdfs")
-	public String hello(Model model) {
-		model.addAttribute("currentPage", "merge-pdfs");
-		return "merge-pdfs";
-	}
-
 	@GetMapping("/home")
+	public String root(Model model) {
+		return "redirect:/";
+	}
+
+
+	@GetMapping("/")
 	public String home(Model model) {
 		model.addAttribute("currentPage", "home");
 		return "home";
 	}
 
-	@PostMapping("/merge-pdfs")
-	public ResponseEntity<InputStreamResource> mergePdfs(@RequestParam("fileInput") MultipartFile[] files)
-			throws IOException {
-		// Read the input PDF files into PDDocument objects
-		List<PDDocument> documents = new ArrayList<>();
-
-		// Loop through the files array and read each file into a PDDocument
-		for (MultipartFile file : files) {
-			documents.add(PDDocument.load(file.getInputStream()));
-		}
-
-		PDDocument mergedDoc = mergeDocuments(documents);
-		ByteArrayOutputStream byteArrayOutputStream = new ByteArrayOutputStream();
-		mergedDoc.save(byteArrayOutputStream);
-		mergedDoc.close();
-
-		// Create an InputStreamResource from the merged PDF
-		InputStreamResource resource = new InputStreamResource(
-				new ByteArrayInputStream(byteArrayOutputStream.toByteArray()));
-
-		// Return the merged PDF as a response
-		return ResponseEntity.ok().contentType(MediaType.APPLICATION_PDF).body(resource);
-	}
-
-	private PDDocument mergeDocuments(List<PDDocument> documents) throws IOException {
-		// Create a new empty document
-		PDDocument mergedDoc = new PDDocument();
-
-		// Iterate over the list of documents and add their pages to the merged document
-		for (PDDocument doc : documents) {
-			// Get all pages from the current document
-			PDPageTree pages = doc.getPages();
-			// Iterate over the pages and add them to the merged document
-			for (PDPage page : pages) {
-				mergedDoc.addPage(page);
-			}
-		}
-
-		// Return the merged document
-		return mergedDoc;
-	}
+	
 
 }

src/main/java/stirling/software/SPDF/controller/RearrangePagesPDFController.java

@@ -20,6 +20,8 @@ import org.springframework.web.bind.annotation.PostMapping;
 import org.springframework.web.bind.annotation.RequestParam;
 import org.springframework.web.multipart.MultipartFile;
 
+import stirling.software.SPDF.utils.PdfUtils;
+
 @Controller
 public class RearrangePagesPDFController {
 
@@ -31,6 +33,60 @@ public class RearrangePagesPDFController {
 		return "pdf-organizer";
 	}
 
+	@GetMapping("/delete-pages")
+	public String pageDeleter(Model model) {
+		model.addAttribute("currentPage", "delete-pages");
+		return "delete-pages";
+	}
+
+	@PostMapping("/delete-pages")
+	public ResponseEntity<byte[]> deletePages(@RequestParam("fileInput") MultipartFile pdfFile,
+			@RequestParam("pagesToDelete") String pagesToDelete) throws IOException {
+		
+		PDDocument document = PDDocument.load(pdfFile.getBytes());
+		 
+		// Split the page order string into an array of page numbers or range of numbers
+		String[] pageOrderArr = pagesToDelete.split(",");
+					
+		List<Integer> pagesToRemove = pageOrderToString(pageOrderArr, document.getNumberOfPages());
+		
+		for (int i = pagesToRemove.size() - 1; i >= 0; i--) {
+		      int pageIndex = pagesToRemove.get(i);
+		      document.removePage(pageIndex);
+		    }
+		
+		return PdfUtils.pdfDocToWebResponse(document, pdfFile.getName() + "_removed_pages.pdf");
+
+	}
+
+	private List<Integer> pageOrderToString(String[] pageOrderArr, int totalPages) {
+		List<Integer> newPageOrder = new ArrayList<Integer>();
+		// loop through the page order array
+		for (String element : pageOrderArr) {
+			// check if the element contains a range of pages
+			if (element.contains("-")) {
+				// split the range into start and end page
+				String[] range = element.split("-");
+				int start = Integer.parseInt(range[0]);
+				int end = Integer.parseInt(range[1]);
+				// check if the end page is greater than total pages
+				if (end > totalPages) {
+					end = totalPages;
+				}
+				// loop through the range of pages
+				for (int j = start; j <= end; j++) {
+					// print the current index
+					newPageOrder.add(j - 1);
+				}
+			} else {
+				// if the element is a single page
+				newPageOrder.add(Integer.parseInt(element) - 1);
+			}
+		}
+
+		return newPageOrder;
+	}
+
 	@PostMapping("/rearrange-pages")
 	public ResponseEntity<byte[]> rearrangePages(@RequestParam("fileInput") MultipartFile pdfFile,
 			@RequestParam("pageOrder") String pageOrder) {
@@ -40,33 +96,11 @@ public class RearrangePagesPDFController {
 
 			// Split the page order string into an array of page numbers or range of numbers
 			String[] pageOrderArr = pageOrder.split(",");
-			List<Integer> newPageOrder = new ArrayList<Integer>();
-			//int[] newPageOrder = new int[pageOrderArr.length];
+			// int[] newPageOrder = new int[pageOrderArr.length];
 			int totalPages = document.getNumberOfPages();
 
-			// loop through the page order array
-			for (String element : pageOrderArr) {
-				// check if the element contains a range of pages
-				if (element.contains("-")) {
-					// split the range into start and end page
-					String[] range = element.split("-");
-					int start = Integer.parseInt(range[0]);
-					int end = Integer.parseInt(range[1]);
-					// check if the end page is greater than total pages
-					if (end > totalPages) {
-						end = totalPages;
-					}
-					// loop through the range of pages
-					for (int j = start; j <= end; j++) {
-						// print the current index
-						newPageOrder.add( j - 1);
-					}
-				} else {
-					// if the element is a single page
-					newPageOrder.add( Integer.parseInt(element) - 1);
-				}
-			}
-
+			List<Integer> newPageOrder = pageOrderToString(pageOrderArr, totalPages);
+			
 			// Create a new list to hold the pages in the new order
 			List<PDPage> newPages = new ArrayList<>();
 			for (int i = 0; i < newPageOrder.size(); i++) {
@@ -83,21 +117,7 @@ public class RearrangePagesPDFController {
 				document.addPage(page);
 			}
 
-			// Save the rearranged PDF to a ByteArrayOutputStream
-			ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
-			document.save(outputStream);
-
-			// Close the original document
-			document.close();
-
-			// Prepare the response headers
-			HttpHeaders headers = new HttpHeaders();
-			headers.setContentType(MediaType.APPLICATION_PDF);
-			headers.setContentDispositionFormData("attachment", "rearranged.pdf");
-			headers.setContentLength(outputStream.size());
-
-			// Return the response with the PDF data and headers
-			return new ResponseEntity<>(outputStream.toByteArray(), headers, HttpStatus.OK);
+			return PdfUtils.pdfDocToWebResponse(document, pdfFile.getName() + "_rearranged.pdf");
 		} catch (IOException e) {
 
 			logger.error("Failed rearranging documents", e);

src/main/java/stirling/software/SPDF/controller/RotationController.java

@@ -53,21 +53,7 @@ public class RotationController {
 			page.setRotation(Integer.valueOf(angle));
 		}
 
-		// Save the rearranged PDF to a ByteArrayOutputStream
-		ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
-		document.save(outputStream);
-
-		// Close the document
-		document.close();
-
-		// Prepare the response headers
-		HttpHeaders headers = new HttpHeaders();
-		headers.setContentType(MediaType.APPLICATION_PDF);
-		headers.setContentDispositionFormData("attachment", "output.pdf");
-		headers.setContentLength(outputStream.size());
-
-		// Return the response with the PDF data and headers
-		return new ResponseEntity<>(outputStream.toByteArray(), headers, HttpStatus.OK);
+		return PdfUtils.pdfDocToWebResponse(document, pdfFile.getName() + "_rotated.pdf");
 
 	}
 

src/main/java/stirling/software/SPDF/controller/converters/ConvertImgPDFController.java

@@ -1,4 +1,4 @@
-package stirling.software.SPDF.controller;
+package stirling.software.SPDF.controller.converters;
 
 import java.io.IOException;
 
@@ -18,37 +18,37 @@ import org.springframework.web.multipart.MultipartFile;
 import stirling.software.SPDF.utils.PdfUtils;
 
 @Controller
-public class ConvertPDFController {
+public class ConvertImgPDFController {
 
-	private static final Logger logger = LoggerFactory.getLogger(ConvertPDFController.class);
+	private static final Logger logger = LoggerFactory.getLogger(ConvertImgPDFController.class);
 
-	@GetMapping("/convert-pdf")
+	@GetMapping("/img-to-pdf")
 	public String convertToPdfForm(Model model) {
-		model.addAttribute("currentPage", "convert-pdf");
-		return "convert-pdf";
+		model.addAttribute("currentPage", "img-to-pdf");
+		return "convert/img-to-pdf";
 	}
 
-	@PostMapping("/convert-to-pdf")
+	@GetMapping("/pdf-to-img")
+	public String pdfToimgForm(Model model) {
+		model.addAttribute("currentPage", "pdf-to-img");
+		return "convert/pdf-to-img";
+	}
+
+	@PostMapping("/img-to-pdf")
 	public ResponseEntity<byte[]> convertToPdf(@RequestParam("fileInput") MultipartFile file) throws IOException {
 		// Convert the file to PDF and get the resulting bytes
 		byte[] bytes = PdfUtils.convertToPdf(file.getInputStream());
 		logger.info("File {} successfully converted to pdf", file.getOriginalFilename());
 
-		HttpHeaders headers = new HttpHeaders();
-		headers.setContentType(MediaType.APPLICATION_PDF);
-		String filename = "converted.pdf";
-		headers.setContentDispositionFormData(filename, filename);
-		headers.setCacheControl("must-revalidate, post-check=0, pre-check=0");
-		ResponseEntity<byte[]> response = new ResponseEntity<>(bytes, headers, HttpStatus.OK);
-		return response;
+		return PdfUtils.bytesToWebResponse(bytes, file.getName() + "_coverted.pdf");
 	}
-	
-	@PostMapping("/convert-from-pdf")
+
+	@PostMapping("/pdf-to-img")
 	public ResponseEntity<byte[]> convertToImage(@RequestParam("fileInput") MultipartFile file,
 			@RequestParam("imageFormat") String imageFormat) throws IOException {
 		byte[] pdfBytes = file.getBytes();
-		//returns bytes for image
-		byte[] result =  PdfUtils.convertFromPdf(pdfBytes, imageFormat.toLowerCase());
+		// returns bytes for image
+		byte[] result = PdfUtils.convertFromPdf(pdfBytes, imageFormat.toLowerCase());
 		HttpHeaders headers = new HttpHeaders();
 		headers.setContentType(MediaType.parseMediaType(getMediaType(imageFormat)));
 		headers.setCacheControl("must-revalidate, post-check=0, pre-check=0");
@@ -57,14 +57,14 @@ public class ConvertPDFController {
 	}
 
 	private String getMediaType(String imageFormat) {
-	    if(imageFormat.equalsIgnoreCase("PNG"))
-	        return "image/png";
-	    else if(imageFormat.equalsIgnoreCase("JPEG") || imageFormat.equalsIgnoreCase("JPG"))
-	        return "image/jpeg";
-	    else if(imageFormat.equalsIgnoreCase("GIF"))
-	        return "image/gif";
-	    else
-	        return "application/octet-stream";
+		if (imageFormat.equalsIgnoreCase("PNG"))
+			return "image/png";
+		else if (imageFormat.equalsIgnoreCase("JPEG") || imageFormat.equalsIgnoreCase("JPG"))
+			return "image/jpeg";
+		else if (imageFormat.equalsIgnoreCase("GIF"))
+			return "image/gif";
+		else
+			return "application/octet-stream";
 	}
-	
+
 }

src/main/java/stirling/software/SPDF/controller/security/PasswordController.java

@@ -0,0 +1,92 @@
+package stirling.software.SPDF.controller.security;
+
+import java.io.ByteArrayOutputStream;
+import java.io.FileOutputStream;
+import java.io.IOException;
+
+import org.apache.pdfbox.pdmodel.PDDocument;
+import org.apache.pdfbox.pdmodel.encryption.AccessPermission;
+import org.apache.pdfbox.pdmodel.encryption.StandardDecryptionMaterial;
+import org.apache.pdfbox.pdmodel.encryption.StandardProtectionPolicy;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.http.HttpHeaders;
+import org.springframework.http.HttpStatus;
+import org.springframework.http.MediaType;
+import org.springframework.http.ResponseEntity;
+import org.springframework.stereotype.Controller;
+import org.springframework.ui.Model;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.RequestParam;
+import org.springframework.web.multipart.MultipartFile;
+
+import stirling.software.SPDF.utils.PdfUtils;
+
+@Controller
+public class PasswordController {
+
+	private static final Logger logger = LoggerFactory.getLogger(PasswordController.class);
+
+	@GetMapping("/add-password")
+	public String addPasswordForm(Model model) {
+		model.addAttribute("currentPage", "add-password");
+		return "security/add-password";
+	}
+
+	@GetMapping("/remove-password")
+	public String removePasswordForm(Model model) {
+		model.addAttribute("currentPage", "remove-password");
+		return "security/remove-password";
+	}
+
+	@GetMapping("/change-permissions")
+	public String permissionsForm(Model model) {
+		model.addAttribute("currentPage", "change-permissions");
+		return "security/change-permissions";
+	}
+
+	@PostMapping("/remove-password")
+	public ResponseEntity<byte[]> compressPDF(@RequestParam("fileInput") MultipartFile fileInput,
+			@RequestParam(name = "password") String password) throws IOException {
+		PDDocument document = PDDocument.load(fileInput.getBytes(), password);
+		document.setAllSecurityToBeRemoved(true);
+		return PdfUtils.pdfDocToWebResponse(document, fileInput.getName() + "_password_removed.pdf");
+	}
+
+	@PostMapping("/add-password")
+	public ResponseEntity<byte[]> compressPDF(@RequestParam("fileInput") MultipartFile fileInput,
+			@RequestParam(defaultValue = "", name = "password") String password,
+			@RequestParam(defaultValue = "128", name = "keyLength") int keyLength,
+			@RequestParam(defaultValue = "false", name = "canAssembleDocument") boolean canAssembleDocument,
+			@RequestParam(defaultValue = "false", name = "canExtractContent") boolean canExtractContent,
+			@RequestParam(defaultValue = "false", name = "canExtractForAccessibility") boolean canExtractForAccessibility,
+			@RequestParam(defaultValue = "false", name = "canFillInForm") boolean canFillInForm,
+			@RequestParam(defaultValue = "false", name = "canModify") boolean canModify,
+			@RequestParam(defaultValue = "false", name = "canModifyAnnotations") boolean canModifyAnnotations,
+			@RequestParam(defaultValue = "false", name = "canPrint") boolean canPrint,
+			@RequestParam(defaultValue = "false", name = "canPrintFaithful") boolean canPrintFaithful)
+			throws IOException {
+
+		PDDocument document = PDDocument.load(fileInput.getBytes());
+		AccessPermission ap = new AccessPermission();
+
+		ap.setCanAssembleDocument(!canAssembleDocument);
+		ap.setCanExtractContent(!canExtractContent);
+		ap.setCanExtractForAccessibility(!canExtractForAccessibility);
+		ap.setCanFillInForm(!canFillInForm);
+		ap.setCanModify(!canModify);
+		ap.setCanModifyAnnotations(!canModifyAnnotations);
+		ap.setCanPrint(!canPrint);
+		ap.setCanPrintFaithful(!canPrintFaithful);
+		StandardProtectionPolicy spp = new StandardProtectionPolicy(password, password, ap);
+		spp.setEncryptionKeyLength(keyLength);
+
+		spp.setPermissions(ap);
+
+		document.protect(spp);
+
+		return PdfUtils.pdfDocToWebResponse(document, fileInput.getName() + "_passworded.pdf");
+	}
+
+}

src/main/java/stirling/software/SPDF/controller/security/WatermarkController.java

@@ -0,0 +1,83 @@
+package stirling.software.SPDF.controller.security;
+
+import java.awt.Color;
+import java.io.ByteArrayOutputStream;
+import java.io.IOException;
+
+import org.apache.pdfbox.pdmodel.PDDocument;
+import org.apache.pdfbox.pdmodel.PDPage;
+import org.apache.pdfbox.pdmodel.PDPageContentStream;
+import org.apache.pdfbox.pdmodel.font.PDFont;
+import org.apache.pdfbox.pdmodel.font.PDType1Font;
+import org.apache.pdfbox.pdmodel.graphics.state.PDExtendedGraphicsState;
+import org.apache.pdfbox.util.Matrix;
+import org.springframework.http.HttpHeaders;
+import org.springframework.http.HttpStatus;
+import org.springframework.http.MediaType;
+import org.springframework.http.ResponseEntity;
+import org.springframework.stereotype.Controller;
+import org.springframework.ui.Model;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.RequestParam;
+import org.springframework.web.multipart.MultipartFile;
+
+import stirling.software.SPDF.utils.PdfUtils;
+
+@Controller
+public class WatermarkController {
+
+	@GetMapping("/add-watermark")
+	public String addWatermarkForm(Model model) {
+		model.addAttribute("currentPage", "add-watermark");
+		return "security/add-watermark";
+	}
+
+	@PostMapping("/add-watermark")
+	public ResponseEntity<byte[]> addWatermark(@RequestParam("pdfFile") MultipartFile pdfFile,
+			@RequestParam("watermarkText") String watermarkText,
+			@RequestParam(defaultValue = "30", name = "fontSize") float fontSize,
+			@RequestParam(defaultValue = "0", name = "rotation") float rotation,
+			@RequestParam(defaultValue = "50", name = "widthSpacer") int widthSpacer,
+			@RequestParam(defaultValue = "50", name = "heightSpacer") int heightSpacer) throws IOException {
+
+		// Load the input PDF
+		PDDocument document = PDDocument.load(pdfFile.getInputStream());
+
+		// Create a page in the document
+		for (PDPage page : document.getPages()) {
+			// Get the page's content stream
+			PDPageContentStream contentStream = new PDPageContentStream(document, page,
+					PDPageContentStream.AppendMode.APPEND, true);
+
+			// Set font of watermark
+			PDFont font = PDType1Font.HELVETICA_BOLD;
+			contentStream.beginText();
+			contentStream.setFont(font, fontSize);
+			contentStream.setNonStrokingColor(Color.LIGHT_GRAY);
+
+			// Set size and location of watermark
+			float pageWidth = page.getMediaBox().getWidth();
+			float pageHeight = page.getMediaBox().getHeight();
+			float watermarkWidth = widthSpacer + font.getStringWidth(watermarkText) * fontSize / 1000;
+			float watermarkHeight = heightSpacer + fontSize;
+			int watermarkRows = (int) (pageHeight / watermarkHeight + 1);
+			int watermarkCols = (int) (pageWidth / watermarkWidth + 1);
+
+			// Add the watermark text
+			for (int i = 0; i < watermarkRows; i++) {
+				for (int j = 0; j < watermarkCols; j++) {
+					contentStream.setTextMatrix(Matrix.getRotateInstance((float) Math.toRadians(rotation),
+							j * watermarkWidth, i * watermarkHeight));
+					contentStream.showTextWithPositioning(new Object[] { watermarkText });
+				}
+			}
+
+			contentStream.endText();
+
+			// Close the content stream
+			contentStream.close();
+		}
+		return PdfUtils.pdfDocToWebResponse(document, pdfFile.getName() + "_watermarked.pdf");
+	}
+}

src/main/java/stirling/software/SPDF/utils/PdfUtils.java

@@ -22,6 +22,12 @@ import org.apache.pdfbox.rendering.ImageType;
 import org.apache.pdfbox.rendering.PDFRenderer;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
+import org.springframework.http.HttpHeaders;
+import org.springframework.http.HttpStatus;
+import org.springframework.http.MediaType;
+import org.springframework.http.ResponseEntity;
+
+import com.spire.pdf.PdfDocument;
 
 public class PdfUtils {
 
@@ -121,4 +127,42 @@ public class PdfUtils {
 			throw e;
 		}
 	}
+
+	public static ResponseEntity<byte[]> pdfDocToWebResponse(PdfDocument document, String docName) throws IOException {
+
+		// Open Byte Array and save document to it
+		ByteArrayOutputStream baos = new ByteArrayOutputStream();
+		document.saveToStream(baos);
+		// Close the document
+		document.close();
+
+		return PdfUtils.boasToWebResponse(baos, docName);
+	}
+
+	public static ResponseEntity<byte[]> pdfDocToWebResponse(PDDocument document, String docName) throws IOException {
+
+		// Open Byte Array and save document to it
+		ByteArrayOutputStream baos = new ByteArrayOutputStream();
+		document.save(baos);
+		// Close the document
+		document.close();
+
+		return PdfUtils.boasToWebResponse(baos, docName);
+	}
+
+	public static ResponseEntity<byte[]> boasToWebResponse(ByteArrayOutputStream baos, String docName)
+			throws IOException {
+		return PdfUtils.bytesToWebResponse(baos.toByteArray(), docName);
+
+	}
+
+	public static ResponseEntity<byte[]> bytesToWebResponse(byte[] bytes, String docName) throws IOException {
+
+		// Return the PDF as a response
+		HttpHeaders headers = new HttpHeaders();
+		headers.setContentType(MediaType.APPLICATION_PDF);
+		headers.setContentLength(bytes.length);
+		headers.setContentDispositionFormData("attachment", docName);
+		return new ResponseEntity<>(bytes, headers, HttpStatus.OK);
+	}
 }

src/main/resources/static/general.css

@@ -1,5 +1,14 @@
-#footer {
-  position: absolute;
-  bottom: 0;
-  width: 100%;
+#page-container {
+  min-height: 100vh;
+  display: flex;
+  flex-direction: column;
 }
+
+#content-wrap {
+  flex: 1;
+}
+
+#footer {
+bottom: 0;
+width: 100%;
+}

src/main/resources/templates/add-image.html

@@ -1,19 +1,20 @@
 <!DOCTYPE html>
 <html lang="en" xmlns:th="http://www.thymeleaf.org">
 
-<head>
-<th:block th:insert="~{common :: head}"></th:block>
-<title>S-PDF Add-Image</title>
-</head>
+
+<th:block th:insert="~{fragments/common :: head(title='Add-Image')}"></th:block>
+
 
 <body>
-	<div th:insert="~{navbar.html :: navbar}"></div>
+	<div id="page-container">
+		<div id="content-wrap">
+	<div th:insert="~{fragments/navbar.html :: navbar}"></div>
 	<br>
 	<br>
 	<div class="container">
 		<div class="row justify-content-center">
 			<div class="col-md-6">
-				<h2>Add image to PDF</h2>
+				<h2>Add image to PDF (Work in progress)</h2>
 
 
 
@@ -40,12 +41,14 @@
 					</div>
 					<button type="submit" class="btn btn-primary">Submit</button>
 				</form>
-				<th:block th:insert="~{common :: filelist}"></th:block>
+				<th:block th:insert="~{fragments/common :: filelist}"></th:block>
 
 			</div>
 		</div>
 	</div>
-	<div th:insert="~{footer.html :: footer}"></div>
+	</div>
+		<div th:insert="~{fragments/footer.html :: footer}"></div>
+	</div>
 </body>
 
 </html>

src/main/resources/templates/common.html

@@ -1,95 +0,0 @@
-<head th:fragment="head">
-	<link rel="shortcut icon" href="favicon.svg">
-	<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.6.1/jquery.min.js"></script>
-	<link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.5.2/css/bootstrap.min.css">
-	<script src="https://stackpath.bootstrapcdn.com/bootstrap/4.5.2/js/bootstrap.min.js"></script>
-	<meta charset="UTF-8">
-
-	<link rel="stylesheet" th:href="@{dark-mode.css}" id="dark-mode-styles">
-	<script>
-		function toggleDarkMode() {
-			var checkbox = document.getElementById("toggle-dark-mode");
-			var darkModeStyles = document.getElementById("dark-mode-styles");
-			if (checkbox.checked) {
-				localStorage.setItem("dark-mode", "on");
-				darkModeStyles.disabled = false;
-			} else {
-				localStorage.setItem("dark-mode", "off");
-				darkModeStyles.disabled = true;
-			}
-		}
-		$(document).ready(function () {
-			var darkModeStyles = document.getElementById("dark-mode-styles");
-			var checkbox = document.getElementById("toggle-dark-mode");
-			if (localStorage.getItem("dark-mode") == "on") {
-				darkModeStyles.disabled = false;
-				checkbox.checked = true;
-			}
-			if (localStorage.getItem("dark-mode") == "off") {
-				darkModeStyles.disabled = true;
-				checkbox.checked = false;
-			}
-
-		});
-	</script>
-	<link rel="stylesheet" href="general.css">
-</head>
-
-<th:block th:fragment="filelist">
-	<div id="fileList"></div>
-	<div id="fileList2"></div>
-	<script>
-		var input = document.getElementById("fileInput");
-		var output = document.getElementById("fileList");
-
-		input.addEventListener("change", function () {
-			var files = input.files;
-			var fileNames = "";
-
-			for (var i = 0; i < files.length; i++) {
-				fileNames += (i + 1) + ". " + files[i].name + "<br>";
-			}
-
-			output.innerHTML = fileNames;
-		});
-
-	</script>
-	<script>
-		var input2 = document.getElementById("fileInput2");
-		var output2 = document.getElementById("fileList2");
-		if (input2 != null && !input2) {
-			input2.addEventListener("change", function () {
-				var files = input2.files;
-				var fileNames = "";
-
-				for (var i = 0; i < files.length; i++) {
-					fileNames += (i + 1) + ". " + files[i].name + "<br>";
-				}
-
-				output2.innerHTML = fileNames;
-			});
-		}
-	</script>
-
-
-	<script>
-		if (dropContainer) {
-			dropContainer.ondragover = dropContainer.ondragenter = function (evt) {
-				evt.preventDefault();
-			};
-
-			dropContainer.ondrop = function (evt) {
-				if(fileInput) {
-					fileInput.files = evt.dataTransfer.files;
-	
-					const dT = new DataTransfer();
-					dT.items.add(evt.dataTransfer.files[0]);
-					dT.items.add(evt.dataTransfer.files[3]);
-					fileInput.files = dT.files;
-	
-					evt.preventDefault();
-				}
-			};
-		}
-	</script>
-</th:block>

src/main/resources/templates/compress-pdf.html

@@ -1,43 +1,46 @@
 <!DOCTYPE html>
 <html lang="en" xmlns:th="http://www.thymeleaf.org">
 
-<head>
-<th:block th:insert="~{common :: head}"></th:block>
-<title>S-PDF Add-Image</title>
-</head>
 
-<body>
-	<div th:insert="~{navbar.html :: navbar}"></div>
+<th:block th:insert="~{fragments/common :: head(title='Compress')}"></th:block>
+
+
+<body>	<div id="page-container">
+		<div id="content-wrap">
+	<div th:insert="~{fragments/navbar.html :: navbar}"></div>
 	<br>
 	<br>
 	<div class="container">
 		<div class="row justify-content-center">
 			<div class="col-md-6">
 				<h2>Compress PDF</h2>
-
-
-				
-				<form action="#" th:action="@{compress-pdf}" th:object="${rotateForm}"
-					method="post" enctype="multipart/form-data">
-					<p>Warning: This process can take up to a minute depending on file-size</p>
+				<form action="#" th:action="@{compress-pdf}"
+					th:object="${rotateForm}" method="post"
+					enctype="multipart/form-data">
+					<p>Warning: This process can take up to a minute depending on
+						file-size</p>
 					<div class="custom-file">
 						<input type="file" class="custom-file-input" id="fileInput"
 							name="fileInput" required> <label
 							class="custom-file-label" for="fileInput">Choose PDF</label>
 					</div>
 					<div class="form-group">
-						<label for="imageCompressionLevel">Value between 1 and 100 (1 being most reduced)</label> <input type="number" class="form-control"
-							id="imageCompressionLevel" name="imageCompressionLevel" step="1" value="1" min="1" max="100" required>
+						<label for="imageCompressionLevel">Value between 1 and 100
+							(1 being most reduced)</label> <input type="number" class="form-control"
+							id="imageCompressionLevel" name="imageCompressionLevel" step="1"
+							value="1" min="1" max="100" required>
 					</div>
 
 					<button type="submit" class="btn btn-primary">Compress</button>
 				</form>
-				<th:block th:insert="~{common :: filelist}"></th:block>
+				<th:block th:insert="~{fragments/common :: filelist}"></th:block>
 
 			</div>
 		</div>
 	</div>
-	<div th:insert="~{footer.html :: footer}"></div>
+	</div>
+		<div th:insert="~{fragments/footer.html :: footer}"></div>
+	</div>
 </body>
 
 </html>

src/main/resources/templates/convert-pdf.html

@@ -1,61 +0,0 @@
-<!DOCTYPE html>
-<html lang="en" xmlns:th="http://www.thymeleaf.org">
-<head>
-<th:block th:insert="~{common :: head}"></th:block>
-<title>S-PDF ConvertToPDF</title>
-</head>
-
-<body>
-	<div th:insert="~{navbar.html :: navbar}"></div>
-	<br>
-	<br>
-	<div class="container">
-		<div class="row justify-content-center">
-			<div class="col-md-6">
-				<h2>Image to PDF</h2>
-
-				<form method="post" enctype="multipart/form-data"
-					th:action="@{convert-to-pdf}">
-					<div class="custom-file">
-						<input type="file" class="custom-file-input" id="fileInput"
-							name="fileInput" required> <label
-							class="custom-file-label" for="fileInput">Choose Image</label>
-					</div>
-					<br><br>
-					<button type="submit" class="btn btn-primary">Convert</button>
-
-				</form>
-				<th:block th:insert="~{common :: filelist}"></th:block>
-			</div>
-		</div>
-	</div>
-	<br><br>
-	<div class="container">
-		<div class="row justify-content-center">
-			<div class="col-md-6">
-				<h2>PDF to img</h2>
-				<form method="post" enctype="multipart/form-data"
-					th:action="@{convert-from-pdf}">
-					<div class="custom-file">
-						<input type="file" class="custom-file-input" id="fileInput"
-							name="fileInput" required> <label
-							class="custom-file-label" for="fileInput">Choose PDF</label>
-					</div>
-					<div class="form-group">
-						<label>Image Format</label> <select class="form-control"
-							name="imageFormat">
-							<option value="jpg">JPEG</option>
-							<option value="png">PNG</option>
-							<option value="gif">GIF</option>
-						</select>
-					</div>
-					<button type="submit" class="btn btn-primary">Convert</button>
-				</form>
-				<th:block th:insert="~{common :: filelist}"></th:block>
-
-			</div>
-		</div>
-	</div>
-	<div th:insert="~{footer.html :: footer}"></div>
-</body>
-</html>

src/main/resources/templates/convert/img-to-pdf.html

@@ -0,0 +1,38 @@
+<!DOCTYPE html>
+<html lang="en" xmlns:th="http://www.thymeleaf.org">
+
+<th:block th:insert="~{fragments/common :: head(title='Image to PDF')}"></th:block>
+
+
+<body>	<div id="page-container">
+		<div id="content-wrap">
+	<div th:insert="~{fragments/navbar.html :: navbar}"></div>
+	<br>
+	<br>
+	<div class="container">
+		<div class="row justify-content-center">
+			<div class="col-md-6">
+				<h2>Image to PDF</h2>
+
+				<form method="post" enctype="multipart/form-data"
+					th:action="@{img-to-pdf}">
+					<div class="custom-file">
+						<input type="file" class="custom-file-input" id="fileInput"
+							name="fileInput" required> <label
+							class="custom-file-label" for="fileInput">Choose Image</label>
+					</div>
+					<br>
+					<br>
+					<button type="submit" class="btn btn-primary">Convert</button>
+
+				</form>
+				<th:block th:insert="~{fragments/common :: filelist}"></th:block>
+			</div>
+		</div>
+	</div>
+
+	</div>
+		<div th:insert="~{fragments/footer.html :: footer}"></div>
+	</div>
+</body>
+</html>

src/main/resources/templates/convert/pdf-to-img.html

@@ -0,0 +1,43 @@
+<!DOCTYPE html>
+<html lang="en" xmlns:th="http://www.thymeleaf.org">
+
+<th:block th:insert="~{fragments/common :: head(title='PDF to Image')}"></th:block>
+
+
+<body>	<div id="page-container">
+		<div id="content-wrap">
+	<div th:insert="~{fragments/navbar.html :: navbar}"></div>
+
+	<br>
+	<br>
+	<div class="container">
+		<div class="row justify-content-center">
+			<div class="col-md-6">
+				<h2>PDF to Image</h2>
+				<form method="post" enctype="multipart/form-data"
+					th:action="@{pdf-to-img}">
+					<div class="custom-file">
+						<input type="file" class="custom-file-input" id="fileInput"
+							name="fileInput" required> <label
+							class="custom-file-label" for="fileInput">Choose PDF</label>
+					</div>
+					<div class="form-group">
+						<label>Image Format</label> <select class="form-control"
+							name="imageFormat">
+							<option value="jpg">JPEG</option>
+							<option value="png">PNG</option>
+							<option value="gif">GIF</option>
+						</select>
+					</div>
+					<button type="submit" class="btn btn-primary">Convert</button>
+				</form>
+				<th:block th:insert="~{fragments/common :: filelist}"></th:block>
+
+			</div>
+		</div>
+	</div>
+	</div>
+		<div th:insert="~{fragments/footer.html :: footer}"></div>
+	</div>
+</body>
+</html>

src/main/resources/templates/delete-pages.html

@@ -0,0 +1,42 @@
+<!DOCTYPE html>
+<html lang="en" xmlns:th="http://www.thymeleaf.org">
+
+<th:block th:insert="~{fragments/common :: head(title='Page Remover')}"></th:block>
+
+
+<body>	<div id="page-container">
+		<div id="content-wrap">
+	<div th:insert="~{fragments/navbar.html :: navbar}"></div>
+	<br>
+	<br>
+	<div class="container">
+		<div class="row justify-content-center">
+			<div class="col-md-6">
+				<h2>PDF Page remover</h2>
+
+				<form th:action="@{delete-pages}" method="post"
+					enctype="multipart/form-data">
+					<div class="custom-file">
+						<input type="file" class="custom-file-input" id="fileInput"
+							name="fileInput" required> <label
+							class="custom-file-label" for="fileInput">Choose PDF</label>
+					</div>
+					<div class="form-group">
+						<label for="pagesToDelete">Pages to delete (Enter a comma-separated
+							list of page numbers) :</label> <input type="text" class="form-control"
+							id="fileInput" name="pagesToDelete"
+							placeholder="(e.g. 1,2,6 or 1-10,15-30)" required>
+					</div>
+					<button type="submit" class="btn btn-primary">Delete
+						Pages</button>
+				</form>
+				<th:block th:insert="~{fragments/common :: filelist}"></th:block>
+
+			</div>
+		</div>
+	</div>
+	</div>
+		<div th:insert="~{fragments/footer.html :: footer}"></div>
+	</div>
+</body>
+</html>

src/main/resources/templates/fragments/card.html

@@ -0,0 +1,9 @@
+<div th:fragment="card"  class="col-4 h-100">
+	<div class="dark-card card">
+		<div class="card-body">
+			<h5 class="card-title" th:text="${cardTitle}"></h5>
+			<p class="card-text" th:text="${cardText}"></p>
+			<a class="btn btn-primary" th:href="${cardLink}">Go</a>
+		</div>
+	</div>
+</div>

src/main/resources/templates/fragments/common.html

@@ -0,0 +1,98 @@
+<head th:fragment="head">
+<link rel="shortcut icon" href="favicon.svg">
+<script
+	src="https://ajax.googleapis.com/ajax/libs/jquery/3.6.1/jquery.min.js"></script>
+<link rel="stylesheet"
+	href="https://stackpath.bootstrapcdn.com/bootstrap/4.5.2/css/bootstrap.min.css">
+<script
+	src="https://stackpath.bootstrapcdn.com/bootstrap/4.5.2/js/bootstrap.min.js"></script>
+<meta charset="UTF-8">
+
+<link rel="stylesheet" th:href="@{dark-mode.css}" id="dark-mode-styles">
+<script>
+	function toggleDarkMode() {
+		var checkbox = document.getElementById("toggle-dark-mode");
+		var darkModeStyles = document.getElementById("dark-mode-styles");
+		if (checkbox.checked) {
+			localStorage.setItem("dark-mode", "on");
+			darkModeStyles.disabled = false;
+		} else {
+			localStorage.setItem("dark-mode", "off");
+			darkModeStyles.disabled = true;
+		}
+	}
+	$(document).ready(function() {
+		var darkModeStyles = document.getElementById("dark-mode-styles");
+		var checkbox = document.getElementById("toggle-dark-mode");
+		if (localStorage.getItem("dark-mode") == "on") {
+			darkModeStyles.disabled = false;
+			checkbox.checked = true;
+		}
+		if (localStorage.getItem("dark-mode") == "off") {
+			darkModeStyles.disabled = true;
+			checkbox.checked = false;
+		}
+
+	});
+</script>
+<title th:text="'S-PDF ' + ${title}"></title>
+<link rel="stylesheet" href="general.css">
+</head>
+
+<th:block th:fragment="filelist">
+	<div id="fileList"></div>
+	<div id="fileList2"></div>
+	<script>
+		var input = document.getElementById("fileInput");
+		var output = document.getElementById("fileList");
+
+		input.addEventListener("change", function() {
+			var files = input.files;
+			var fileNames = "";
+
+			for (var i = 0; i < files.length; i++) {
+				fileNames += (i + 1) + ". " + files[i].name + "<br>";
+			}
+
+			output.innerHTML = fileNames;
+		});
+	</script>
+	<script>
+		var input2 = document.getElementById("fileInput2");
+		var output2 = document.getElementById("fileList2");
+		if (input2 != null && !input2) {
+			input2.addEventListener("change", function() {
+				var files = input2.files;
+				var fileNames = "";
+
+				for (var i = 0; i < files.length; i++) {
+					fileNames += (i + 1) + ". " + files[i].name + "<br>";
+				}
+
+				output2.innerHTML = fileNames;
+			});
+		}
+	</script>
+
+
+	<script>
+		if (dropContainer) {
+			dropContainer.ondragover = dropContainer.ondragenter = function(evt) {
+				evt.preventDefault();
+			};
+
+			dropContainer.ondrop = function(evt) {
+				if (fileInput) {
+					fileInput.files = evt.dataTransfer.files;
+
+					const dT = new DataTransfer();
+					dT.items.add(evt.dataTransfer.files[0]);
+					dT.items.add(evt.dataTransfer.files[3]);
+					fileInput.files = dT.files;
+
+					evt.preventDefault();
+				}
+			};
+		}
+	</script>
+</th:block>

src/main/resources/templates/fragments/footer.html

@@ -2,8 +2,8 @@
 	<link rel="stylesheet"
 		href="https://use.fontawesome.com/releases/v5.6.1/css/all.css">
 	<footer id="footer" class="text-center py-3">
-		<a href="https://github.com/Frooodle/Stirling-PDF" target="_blank" class="mx-1">
-			<i class="fab fa-github fa-2x"></i>
+		<a href="https://github.com/Frooodle/Stirling-PDF" target="_blank"
+			class="mx-1"> <i class="fab fa-github fa-2x"></i>
 		</a> <a href="https://hub.docker.com/r/frooodle/s-pdf" target="_blank"
 			class="mx-1"> <i class="fab fa-docker fa-2x"></i>
 		</a>

src/main/resources/templates/fragments/navbar.html

@@ -0,0 +1,87 @@
+<div th:fragment="navbar">
+	<nav class="navbar navbar-expand-lg navbar-light bg-light">
+		<div class="container">
+			<a class="navbar-brand" href="#" th:href="@{/}">Stirling PDF</a>
+			<button class="navbar-toggler" type="button" data-toggle="collapse"
+				data-target="#navbarNav" aria-controls="navbarNav"
+				aria-expanded="false" aria-label="Toggle navigation">
+				<span class="navbar-toggler-icon"></span>
+			</button>
+			<div class="collapse navbar-collapse" id="navbarNav">
+				<ul class="navbar-nav">
+
+					<li class="nav-item"><a class="nav-link" href="#"
+						th:href="@{merge-pdfs}"
+						th:classappend="${currentPage}=='merge-pdfs' ? 'active' : ''">Merge
+							PDFs</a></li>
+					<li class="nav-item"><a class="nav-link" href="#"
+						th:href="@{split-pdfs}"
+						th:classappend="${currentPage}=='split-pdfs' ? 'active' : ''">Split
+							PDFs</a></li>
+					<li class="nav-item"><a class="nav-link" href="#"
+						th:href="@{pdf-organizer}"
+						th:classappend="${currentPage}=='pdf-organizer' ? 'active' : ''">Page
+							Organizer</a></li>		
+							
+					<li class="nav-item"><a class="nav-link" href="#"
+						th:href="@{rotate-pdf}"
+						th:classappend="${currentPage}=='rotate-pdf' ? 'active' : ''">Rotate PDF</a></li>
+						
+						
+						
+								
+					
+					<li class="nav-item dropdown" th:classappend="${currentPage}=='pdf-to-img' OR ${currentPage}=='img-to-pdf' ? 'active' : ''">
+												<a class="nav-link dropdown-toggle" href="#" id="navbarDropdown" role="button" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">
+					Convert
+					</a>
+					<div class="dropdown-menu" aria-labelledby="navbarDropdown">
+						<a class="dropdown-item" href="#" th:href="@{pdf-to-img}" th:classappend="${currentPage}=='pdf-to-img' ? 'active' : ''">PDF to Image</a>
+						<a class="dropdown-item" href="#" th:href="@{img-to-pdf}" th:classappend="${currentPage}=='img-to-pdf' ? 'active' : ''">Image to PDF</a>
+					</div>
+				</li>
+				
+				<li class="nav-item dropdown" th:classappend="${currentPage}=='add-password' OR ${currentPage}=='remove-password' OR ${currentPage}=='change-permissions' OR ${currentPage}=='add-watermark' ? 'active' : ''">
+												<a class="nav-link dropdown-toggle" href="#" id="navbarDropdown" role="button" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">
+					Security
+					</a>
+					<div class="dropdown-menu" aria-labelledby="navbarDropdown">
+						<a class="dropdown-item" href="#" th:href="@{add-password}" th:classappend="${currentPage}=='add-password' ? 'active' : ''">Add password (Encrypt)</a>
+						<a class="dropdown-item" href="#" th:href="@{remove-password}" th:classappend="${currentPage}=='remove-password' ? 'active' : ''">Remove password (Decrypt)</a>
+						<a class="dropdown-item" href="#" th:href="@{change-permissions}" th:classappend="${currentPage}=='change-permissions' ? 'active' : ''">Change permissions</a>
+						<a class="dropdown-item" href="#" th:href="@{add-watermark}" th:classappend="${currentPage}=='add-watermark' ? 'active' : ''">Add Watermark</a>
+					</div>
+				</li>	
+				
+				<li class="nav-item dropdown" th:classappend="${currentPage}=='delete-pages' OR ${currentPage}=='add-image' OR ${currentPage}=='compress-pdf' ? 'active' : ''">
+												<a class="nav-link dropdown-toggle" href="#" id="navbarDropdown" role="button" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">
+					Others
+					</a>
+					<div class="dropdown-menu" aria-labelledby="navbarDropdown">
+						<a class="dropdown-item" href="#" th:href="@{add-image}" th:classappend="${currentPage}=='add-image' ? 'active' : ''">Add
+							image to PDF</a>
+						<a class="dropdown-item" href="#" th:href="@{compress-pdf}" th:classappend="${currentPage}=='compress-pdf' ? 'active' : ''">Compress PDF</a>
+						<a class="dropdown-item" href="#" th:href="@{delete-pages}" th:classappend="${currentPage}=='delete-pages' ? 'active' : ''">Remove Pages</a>
+					</div>
+				</li>				
+				
+				
+				
+				<li class="nav-item"><a class="nav-link" href="#"
+						th:href="@{add-image}"
+						th:classappend="${currentPage}=='add-image' ? 'active' : ''"></a></li>
+					
+					<li class="nav-item"><a class="nav-link" href="#"
+						th:href="@{compress-pdf}"
+						th:classappend="${currentPage}=='compress-pdf' ? 'active' : ''"></a></li>	
+									
+					<input type="checkbox" id="toggle-dark-mode" checked="true"
+						th:onclick="javascript:toggleDarkMode()">
+					<a class="nav-link" href="#" for="toggle-dark-mode">Dark Mode</a>
+
+				</ul>
+
+			</div>
+		</div>
+	</nav>
+</div>

src/main/resources/templates/home.html

@@ -1,108 +1,61 @@
 <!DOCTYPE html>
 <html lang="en" xmlns:th="http://www.thymeleaf.org">
 
-<head>
-	<th:block th:insert="~{common :: head}"></th:block>
-	<title>S-PDF</title>
-</head>
+
+<th:block th:insert="~{fragments/common :: head(title='')}"></th:block>
+
 
 <body>
-	<div th:insert="~{navbar.html :: navbar}"></div>
-	<!-- Jumbotron -->
-	<div class="jumbotron jumbotron-fluid" id="jumbotron">
-		<div class="container">
-			<h1 class="display-4">Stirling PDF</h1>
-			<p class="lead">Your locally hosted one-stop-shop for all your
-				PDF needs. (Made 100% in ChatGPT in 1 day as a experiment)</p>
+
+	<div id="page-container">
+		<div id="content-wrap">
+			<div th:insert="~{fragments/navbar.html :: navbar}"></div>
+			<!-- Jumbotron -->
+			<div class="jumbotron jumbotron-fluid" id="jumbotron">
+				<div class="container">
+					<h1 class="display-4">Stirling PDF</h1>
+					<p class="lead">Your locally hosted one-stop-shop for all your
+						PDF needs. (Made 100% in ChatGPT in 1 day as a experiment)</p>
+				</div>
+			</div>
+
+			<!-- Features -->
+			<div class="container">
+				<div class="row h-100">
+					<div th:replace="~{fragments/card :: card(cardTitle='Merge PDFs', cardText='Easily merge multiple PDFs into one.', cardLink='merge-pdfs')}"></div>
+					<div th:replace="~{fragments/card :: card(cardTitle='Split PDFs', cardText='Split PDFs into multiple documents', cardLink='split-pdfs')}"></div>
+					<div th:replace="~{fragments/card :: card(cardTitle='Rotate PDFs', cardText='Easily rotate your PDFs.', cardLink='rotate-pdf')}"></div>
+				</div>
+
+				<br>
+
+				<div class="row h-100">
+					<div th:replace="~{fragments/card :: card(cardTitle='Image to PDF', cardText='Convert a images (PNG, JPEG, GIF) to PDF.', cardLink='img-to-pdf')}"></div>
+					<div th:replace="~{fragments/card :: card(cardTitle='PDF to Image', cardText='Convert a PDF to a image. (PNG, JPEG, GIF)', cardLink='pdf-to-img')}"></div>
+					<div th:replace="~{fragments/card :: card(cardTitle='PDF Organizer', cardText='Remove/Rearrange pages in any order', cardLink='pdf-organizer')}"></div>
+				</div>
+				<br>
+				<div class="row h-100">
+					<div th:replace="~{fragments/card :: card(cardTitle='Add image onto PDF', cardText='Adds a image onto a set location on the PDF (Work in progress)', cardLink='add-image')}"></div>
+					<div th:replace="~{fragments/card :: card(cardTitle='Add Watermark', cardText='Add a custom watermark to your PDF document.', cardLink='add-watermark')}"></div>
+					<div th:replace="~{fragments/card :: card(cardTitle='Change Permissions', cardText='Change the permissions of your PDF document, such as print, copy, edit, etc.', cardLink='change-permissions')}"></div>
+				</div>
+				<br>
+				<div class="row h-100">
+					<div th:replace="~{fragments/card :: card(cardTitle='Remove Pages', cardText='Delete unwanted pages from your PDF document.', cardLink='remove-pages')}"></div>
+					<div th:replace="~{fragments/card :: card(cardTitle='Add Password', cardText='Encrypt your PDF document with a password.', cardLink='add-password')}"></div>
+					<div th:replace="~{fragments/card :: card(cardTitle='Remove Password', cardText='Remove password protection from your PDF document.', cardLink='remove-password')}"></div>
+				</div>
+				<br>
+				<div class="row h-100">
+					<div th:replace="~{fragments/card :: card(cardTitle='Compress PDFs', cardText='Compress PDFs to reduce their file size.', cardLink='compress-pdf')}"></div>
+				</div>
+				<br>
+
+			</div>
 		</div>
+		<div th:insert="~{fragments/footer.html :: footer}"></div>
 	</div>
-
-	<!-- Features -->
-
-
-	<div class="container">
-		<div class="row h-100">
-			<div class="col-4 h-100">
-				<div class="dark-card card">
-					<div class="card-body">
-						<h5 class="card-title">Merge PDFs</h5>
-						<p class="card-text">Easily merge multiple PDFs into one.</p>
-						<a href="#" class="btn btn-primary" th:href="@{merge-pdfs}">Go</a>
-					</div>
-				</div>
-			</div>
-			<div class="col-4 h-100">
-				<div class="dark-card card">
-					<div class="card-body">
-						<h5 class="card-title">Split PDFs</h5>
-						<p class="card-text">Split PDFs into multiple documents</p>
-						<a href="#" class="btn btn-primary" th:href="@{split-pdfs}">Go</a>
-					</div>
-				</div>
-			</div>
-			<div class="col-4 h-100">
-				<div class="dark-card card">
-					<div class="card-body">
-						<h5 class="card-title">Add image to PDF</h5>
-						<p class="card-text">Adds image/watermark to a PDF</p>
-						<a href="#" class="btn btn-primary" th:href="@{add-image}">Go</a>
-					</div>
-				</div>
-			</div>
-		</div>
-		<br>
-		<div class="row h-100">
-			<div class="col-4 h-100">
-				<div class="dark-card card">
-					<div class="card-body">
-						<h5 class="card-title">Convert to/from PDF</h5>
-						<p class="card-text">Convert images to/from PDF.</p>
-						<a href="#" class="btn btn-primary" th:href="@{convert-pdf}">Go</a>
-					</div>
-				</div>
-			</div>
-
-			<div class="col-4 h-100">
-				<div class="dark-card card">
-					<div class="card-body">
-						<h5 class="card-title">PDF Organizer</h5>
-						<p class="card-text">Remove/Rearrange pages in any order</p>
-						<a href="#" class="btn btn-primary" th:href="@{pdf-organizer}">Go</a>
-					</div>
-				</div>
-			</div>
-
-			<div class="col-4 h-100">
-				<div class="dark-card card">
-					<div class="card-body">
-						<h5 class="card-title">Rotate PDFs</h5>
-						<p class="card-text">Easily rotate your PDFs.</p>
-						<a href="#" class="btn btn-primary" th:href="@{rotate-pdf}">Go</a>
-					</div>
-				</div>
-			</div>
-
-		</div>
-		<br>
-		<div class="row h-100">
-
-
-
-
-
-			<div class="col-4 h-100">
-				<div class="dark-card card">
-					<div class="card-body">
-						<h5 class="card-title">Compress PDFs</h5>
-						<p class="card-text">Compress PDFs to reduce their file size.</p>
-						<a href="#" class="btn btn-primary" th:href="@{compress-pdf}">Go</a>
-					</div>
-				</div>
-			</div>
-
-		</div>
-	</div>
-	<div th:insert="~{footer.html :: footer}"></div>
 </body>
 
 </html>

src/main/resources/templates/merge-pdfs.html

@@ -1,19 +1,17 @@
 <!DOCTYPE html>
 <html lang="en" xmlns:th="http://www.thymeleaf.org">
-<head>
-<th:block th:insert="~{common :: head}"></th:block>
-<title>S-PDF MergePDFs</title>
+
+<th:block th:insert="~{fragments/common :: head(title='Merge PDFs')}"></th:block>
 
 
-</head>
-
-<body>
-	<div th:insert="~{navbar.html :: navbar}"></div>
+<body>	<div id="page-container">
+		<div id="content-wrap">
+	<div th:insert="~{fragments/navbar.html :: navbar}"></div>
 	<br>
 	<br>
 	<div class="container" id="dropContainer">
 		<div class="row justify-content-center">
-			<div class="col-md-6" >
+			<div class="col-md-6">
 				<h2>Merge multiple PDFs (2+)</h2>
 				<form action="merge-pdfs" method="post"
 					enctype="multipart/form-data">
@@ -21,79 +19,106 @@
 						<label>Select (or drag & drop) all PDFs to merge</label>
 						<div class="custom-file">
 							<input type="file" class="custom-file-input" id="fileInput"
-								name="fileInput" multiple> <label
+								name="fileInput" multiple required> <label
 								class="custom-file-label">Choose PDFs</label>
 						</div>
 					</div>
 					<div class="form-group">
-					    <ul id="selectedFiles" class="list-group"></ul>
-					  </div>
+						<ul id="selectedFiles" class="list-group"></ul>
+					</div>
 					<div class="form-group text-center">
 						<button type="submit" class="btn btn-primary">Merge</button>
 					</div>
 				</form>
-				
-				
 
-				
 
-<script>
-document.getElementById("fileInput").addEventListener("change", function() {
-    var files = this.files;
-    var list = document.getElementById("selectedFiles");
-    list.innerHTML = "";
-    for (var i = 0; i < files.length; i++) {
-      var item = document.createElement("li");
-      item.className = "list-group-item d-flex justify-content-between align-items-center";
-      item.textContent = files[i].name;
-      item.innerHTML += '<div><button class="btn btn-secondary move-up">Move Up</button> <button class="btn btn-secondary move-down">Move Down</button></div>';
-      list.appendChild(item);
-    }
-    var moveUpButtons = document.querySelectorAll(".move-up");
-    for (var i = 0; i < moveUpButtons.length; i++) {
-      moveUpButtons[i].addEventListener("click", function(event) {
-        event.preventDefault();
-        var parent = this.parentNode.parentNode;
-        var grandParent = parent.parentNode;
-        if (parent.previousElementSibling) {
-          grandParent.insertBefore(parent, parent.previousElementSibling);
-          updateFiles();
-        }
-      });
-    }
-    var moveDownButtons = document.querySelectorAll(".move-down");
-    for (var i = 0; i < moveDownButtons.length; i++) {
-      moveDownButtons[i].addEventListener("click", function(event) {
-        event.preventDefault();
-        var parent = this.parentNode.parentNode;
-        var grandParent = parent.parentNode;
-        if (parent.nextElementSibling) {
-          grandParent.insertBefore(parent.nextElementSibling, parent);
-          updateFiles();
-        } 
-      });
-    }
 
-    function updateFiles() {
-      var dataTransfer = new DataTransfer();
-      var liElements = document.querySelectorAll("#selectedFiles li");
-      
-      for (var i = 0; i < liElements.length; i++) {
-    	var fileNameFromList = liElements[i].innerText.replace("\nMove Up Move Down","");
-    	var fileFromFiles 
-    	for (var j = 0; j < files.length; j++) {
-        	var file = files[j];
-        	if(file.name === fileNameFromList){
-        		dataTransfer.items.add(file);
-        		break;
-        	}
-    	}
-      }
-      document.getElementById("fileInput").files = dataTransfer.files;
-    }
-  });
-  
-</script>
+
+
+				<script>
+					document
+							.getElementById("fileInput")
+							.addEventListener(
+									"change",
+									function() {
+										var files = this.files;
+										var list = document
+												.getElementById("selectedFiles");
+										list.innerHTML = "";
+										for (var i = 0; i < files.length; i++) {
+											var item = document
+													.createElement("li");
+											item.className = "list-group-item d-flex justify-content-between align-items-center";
+											item.textContent = files[i].name;
+											item.innerHTML += '<div><button class="btn btn-secondary move-up">Move Up</button> <button class="btn btn-secondary move-down">Move Down</button></div>';
+											list.appendChild(item);
+										}
+										var moveUpButtons = document
+												.querySelectorAll(".move-up");
+										for (var i = 0; i < moveUpButtons.length; i++) {
+											moveUpButtons[i]
+													.addEventListener(
+															"click",
+															function(event) {
+																event
+																		.preventDefault();
+																var parent = this.parentNode.parentNode;
+																var grandParent = parent.parentNode;
+																if (parent.previousElementSibling) {
+																	grandParent
+																			.insertBefore(
+																					parent,
+																					parent.previousElementSibling);
+																	updateFiles();
+																}
+															});
+										}
+										var moveDownButtons = document
+												.querySelectorAll(".move-down");
+										for (var i = 0; i < moveDownButtons.length; i++) {
+											moveDownButtons[i]
+													.addEventListener(
+															"click",
+															function(event) {
+																event
+																		.preventDefault();
+																var parent = this.parentNode.parentNode;
+																var grandParent = parent.parentNode;
+																if (parent.nextElementSibling) {
+																	grandParent
+																			.insertBefore(
+																					parent.nextElementSibling,
+																					parent);
+																	updateFiles();
+																}
+															});
+										}
+
+										function updateFiles() {
+											var dataTransfer = new DataTransfer();
+											var liElements = document
+													.querySelectorAll("#selectedFiles li");
+
+											for (var i = 0; i < liElements.length; i++) {
+												var fileNameFromList = liElements[i].innerText
+														.replace(
+																"\nMove Up Move Down",
+																"");
+												var fileFromFiles
+												for (var j = 0; j < files.length; j++) {
+													var file = files[j];
+													if (file.name === fileNameFromList) {
+														dataTransfer.items
+																.add(file);
+														break;
+													}
+												}
+											}
+											document
+													.getElementById("fileInput").files = dataTransfer.files;
+										}
+									});
+				</script>
 
 
 
@@ -101,6 +126,8 @@ document.getElementById("fileInput").addEventListener("change", function() {
 			</div>
 		</div>
 	</div>
-	<div th:insert="~{footer.html :: footer}"></div>
+	</div>
+		<div th:insert="~{fragments/footer.html :: footer}"></div>
+	</div>
 </body>
 </html>

src/main/resources/templates/navbar.html

@@ -1,49 +0,0 @@
-<div th:fragment="navbar">
-	<nav class="navbar navbar-expand-lg navbar-light bg-light">
-		<div class="container">
-			<a class="navbar-brand" href="#" th:href="@{home}">Stirling PDF</a>
-			<button class="navbar-toggler" type="button" data-toggle="collapse"
-				data-target="#navbarNav" aria-controls="navbarNav"
-				aria-expanded="false" aria-label="Toggle navigation">
-				<span class="navbar-toggler-icon"></span>
-			</button>
-			<div class="collapse navbar-collapse" id="navbarNav">
-				<ul class="navbar-nav">
-
-					<li class="nav-item"><a class="nav-link" href="#"
-						th:href="@{merge-pdfs}"
-						th:classappend="${currentPage}=='merge-pdfs' ? 'active' : ''">Merge
-							PDFs</a></li>
-					<li class="nav-item"><a class="nav-link" href="#"
-						th:href="@{split-pdfs}"
-						th:classappend="${currentPage}=='split-pdfs' ? 'active' : ''">Split
-							PDFs</a></li>
-					<li class="nav-item"><a class="nav-link" href="#"
-						th:href="@{convert-pdf}"
-						th:classappend="${currentPage}=='convert-pdf' ? 'active' : ''">Convert
-							to/from PDF</a></li>
-					<li class="nav-item"><a class="nav-link" href="#"
-						th:href="@{add-image}"
-						th:classappend="${currentPage}=='add-image' ? 'active' : ''">Add
-							image to PDF</a></li>
-					<li class="nav-item"><a class="nav-link" href="#"
-						th:href="@{pdf-organizer}"
-						th:classappend="${currentPage}=='pdf-organizer' ? 'active' : ''">PDF
-							Organizer</a></li>
-					<li class="nav-item"><a class="nav-link" href="#"
-						th:href="@{rotate-pdf}"
-						th:classappend="${currentPage}=='rotate-pdf' ? 'active' : ''">Rotate PDF</a></li>
-					<li class="nav-item"><a class="nav-link" href="#"
-						th:href="@{compress-pdf}"
-						th:classappend="${currentPage}=='compress-pdf' ? 'active' : ''">Compress PDF</a></li>	
-												
-					<input type="checkbox" id="toggle-dark-mode"
-						th:onclick="javascript:toggleDarkMode()">
-					<a class="nav-link" href="#" for="toggle-dark-mode">Dark Mode</a>
-
-				</ul>
-
-			</div>
-		</div>
-	</nav>
-</div>

src/main/resources/templates/pdf-organizer.html

@@ -1,12 +1,12 @@
 <!DOCTYPE html>
 <html lang="en" xmlns:th="http://www.thymeleaf.org">
-<head>
-<th:block th:insert="~{common :: head}"></th:block>
-<title>S-PDF Organizer</title>
-</head>
 
-<body>
-	<div th:insert="~{navbar.html :: navbar}"></div>
+<th:block th:insert="~{fragments/common :: head(title='Organizer')}"></th:block>
+
+
+<body>	<div id="page-container">
+		<div id="content-wrap">
+	<div th:insert="~{fragments/navbar.html :: navbar}"></div>
 	<br>
 	<br>
 	<div class="container">
@@ -32,11 +32,13 @@
 					<button type="submit" class="btn btn-primary">Rearrange
 						Pages</button>
 				</form>
-				<th:block th:insert="~{common :: filelist}"></th:block>
+				<th:block th:insert="~{fragments/common :: filelist}"></th:block>
 
 			</div>
 		</div>
 	</div>
-	<div th:insert="~{footer.html :: footer}"></div>
+	</div>
+		<div th:insert="~{fragments/footer.html :: footer}"></div>
+	</div>
 </body>
 </html>

src/main/resources/templates/rotate-pdf.html

@@ -1,13 +1,13 @@
 <!DOCTYPE html>
 <html lang="en" xmlns:th="http://www.thymeleaf.org">
 
-<head>
-<th:block th:insert="~{common :: head}"></th:block>
-<title>S-PDF Add-Image</title>
-</head>
 
-<body>
-	<div th:insert="~{navbar.html :: navbar}"></div>
+<th:block th:insert="~{fragments/common :: head(title='Rotate')}"></th:block>
+
+
+<body>	<div id="page-container">
+		<div id="content-wrap">
+	<div th:insert="~{fragments/navbar.html :: navbar}"></div>
 	<br>
 	<br>
 	<div class="container">
@@ -24,7 +24,7 @@
 							name="fileInput" required> <label
 							class="custom-file-label" for="fileInput">Choose PDF</label>
 					</div>
-					
+
 					<label for="angle">Select rotation angle (in multiples of
 						90 degrees):</label> <select id="angle" class="form-control" name="angle">
 						<option value="90">90</option>
@@ -36,12 +36,14 @@
 					</select> <br>
 					<button type="submit" class="btn btn-primary">Rotate</button>
 				</form>
-				<th:block th:insert="~{common :: filelist}"></th:block>
+				<th:block th:insert="~{fragments/common :: filelist}"></th:block>
 
 			</div>
 		</div>
 	</div>
-	<div th:insert="~{footer.html :: footer}"></div>
+	</div>
+		<div th:insert="~{fragments/footer.html :: footer}"></div>
+	</div>
 </body>
 
 </html>

src/main/resources/templates/security/add-password.html

@@ -0,0 +1,103 @@
+<!DOCTYPE html>
+<html lang="en" xmlns:th="http://www.thymeleaf.org">
+
+<th:block th:insert="~{fragments/common :: head(title='Add Password')}"></th:block>
+
+<body>	<div id="page-container">
+		<div id="content-wrap">
+	<div th:insert="~{fragments/navbar.html :: navbar}"></div>
+	<br>
+	<br>
+	<div class="container">
+		<div class="row justify-content-center">
+			<div class="col-md-6">
+				<h2>Add password (Encrypt)</h2>
+
+				<form action="add-password" method="post"
+					enctype="multipart/form-data">
+					<div class="form-group">
+						<label>Select PDF to encrypt</label>
+						<div class="custom-file">
+							<input type="file" class="custom-file-input" id="fileInput"
+								name="fileInput" required> <label
+								class="custom-file-label">Choose PDF</label>
+						</div>
+					</div>
+					<div class="form-group">
+						<label>Password</label> <input type="password"
+							class="form-control" id="password" name="password" required>
+					</div>
+					<div class="form-group">
+						<label>Encryption Key Length</label> <select class="form-control"
+							id="keyLength" name="keyLength">
+							<option value="40">40</option>
+							<option value="128">128</option>
+							<option value="256">256</option>
+						</select> <small class="form-text text-muted">Higher values are
+							stronger, but lower values have better compatibility.</small>
+					</div>
+					<div class="form-group">
+						<label>Permissions to set</label>
+						<div class="form-check">
+							<input class="form-check-input" type="checkbox"
+								id="canAssembleDocument" name="canAssembleDocument"> <label
+								class="form-check-label" for="canAssembleDocument">
+								Prevent assembly of document </label>
+						</div>
+						<div class="form-check">
+							<input class="form-check-input" type="checkbox"
+								id="canExtractContent" name="canExtractContent"> <label
+								class="form-check-label" for="canExtractContent">
+								Prevent content extraction </label>
+						</div>
+						<div class="form-check">
+							<input class="form-check-input" type="checkbox"
+								id="canExtractForAccessibility"
+								name="canExtractForAccessibility"> <label
+								class="form-check-label" for="canExtractForAccessibility">
+								Prevent extraction for accessibility </label>
+						</div>
+						<div class="form-check">
+							<input class="form-check-input" type="checkbox"
+								id="canFillInForm" name="canFillInForm"> <label
+								class="form-check-label" for="canFillInForm"> Prevent
+								filling in form </label>
+						</div>
+						<div class="form-check">
+							<input class="form-check-input" type="checkbox" id="canModify"
+								name="canModify"> <label class="form-check-label"
+								for="canModify"> Prevent modification </label>
+						</div>
+						<div class="form-check">
+							<input class="form-check-input" type="checkbox"
+								id="canModifyAnnotations" name="canModifyAnnotations"> <label
+								class="form-check-label" for="canModifyAnnotations">
+								Prevent annotation modification </label>
+						</div>
+						<div class="form-check">
+							<input class="form-check-input" type="checkbox" id="canPrint"
+								name="canPrint"> <label class="form-check-label"
+								for="canPrint"> Prevent printing </label>
+						</div>
+						<div class="form-check">
+							<input class="form-check-input" type="checkbox"
+								id="canPrintFaithful" name="canPrintFaithful"> <label
+								class="form-check-label" for="canPrintFaithful"> Prevent
+								printing different formats </label>
+						</div>
+
+					</div>
+					<br />
+					<div class="form-group text-center">
+						<button type="submit" class="btn btn-primary">Encrypt</button>
+					</div>
+
+				</form>
+			</div>
+		</div>
+	</div>
+	</div>
+		<div th:insert="~{fragments/footer.html :: footer}"></div>
+	</div>
+</body>
+</html>

src/main/resources/templates/security/add-watermark.html

@@ -0,0 +1,56 @@
+<!DOCTYPE html>
+<html lang="en" xmlns:th="http://www.thymeleaf.org">
+
+<th:block th:insert="~{fragments/common :: head(title='Add Watermark')}"></th:block>
+
+<body>	<div id="page-container">
+		<div id="content-wrap">
+	<div th:insert="~{fragments/navbar.html :: navbar}"></div>
+	<br>
+	<br>
+	<div class="container">
+		<div class="row justify-content-center">
+			<div class="col-md-6">
+				<h2>Add Watermark</h2>
+
+				<form method="post" enctype="multipart/form-data" action="add-watermark">
+		            <div class="form-group">
+						<label>Select PDF to add watermark to:</label>
+						<div class="custom-file">
+							<input type="file" class="custom-file-input" id="fileInput"
+								name="fileInput" required> <label
+								class="custom-file-label">Choose PDF</label>
+						</div>
+					</div>
+		            <div class="form-group">
+		                <label for="watermarkText">Watermark Text:</label>
+		                <input type="text" id="watermarkText" name="watermarkText" class="form-control" placeholder="Stirling-PDF" required/>
+		            </div>
+		            <div class="form-group">
+		                <label for="fontSize">Font Size:</label>
+		                <input type="text" id="fontSize" name="fontSize" class="form-control" value="30"/>
+		            </div>
+		            <div class="form-group">
+		                <label for="rotation">Rotation (0-360):</label>
+		                <input type="text" id="rotation" name="rotation" class="form-control"  value="45"/>
+		            </div>
+		            <div class="form-group">
+		                <label for="widthSpacer">widthSpacer (Space between each watermark horizontally):</label>
+		                <input type="text" id="widthSpacer" name="widthSpacer" class="form-control" value="50"/>
+		            </div>
+		            <div class="form-group">
+		                <label for="heightSpacer">heightSpacer (Space between each watermark vertically):</label>
+		                <input type="text" id="heightSpacer" name="heightSpacer" class="form-control" value="50"/>
+		            </div>
+		            <div class="form-group text-center">
+		                <input type="submit" value="Add Watermark" class="btn btn-primary"/>
+		            </div>
+        </form> 
+</div>
+		</div>
+	</div>
+	</div>
+		<div th:insert="~{fragments/footer.html :: footer}"></div>
+	</div>
+</body>
+</html>

src/main/resources/templates/security/change-permissions.html

@@ -0,0 +1,93 @@
+<!DOCTYPE html>
+<html lang="en" xmlns:th="http://www.thymeleaf.org">
+
+<th:block th:insert="~{fragments/common :: head(title='Change Permissions')}"></th:block>
+
+
+<body>	<div id="page-container">
+		<div id="content-wrap">
+	<div th:insert="~{fragments/navbar.html :: navbar}"></div>
+	<br>
+	<br>
+	<div class="container">
+		<div class="row justify-content-center">
+			<div class="col-md-6">
+				<h2>Change permissions</h2>
+				<p>Warning to have these permissions be
+					unchangeable it is recommended to set them with a password via the
+					add-password page</p>
+				<form action="add-password" method="post"
+					enctype="multipart/form-data">
+					<div class="form-group">
+						<label>Select PDF to change permissions</label>
+						<div class="custom-file">
+							<input type="file" class="custom-file-input" id="fileInput"
+								name="fileInput"> <label class="custom-file-label">Choose
+								PDF</label>
+						</div>
+					</div>
+					<div class="form-group">
+						<label>Permissions to set</label>
+						<div class="form-check">
+							<input class="form-check-input" type="checkbox"
+								id="canAssembleDocument" name="canAssembleDocument"> <label
+								class="form-check-label" for="canAssembleDocument">
+								Prevent assembly of document </label>
+						</div>
+						<div class="form-check">
+							<input class="form-check-input" type="checkbox"
+								id="canExtractContent" name="canExtractContent"> <label
+								class="form-check-label" for="canExtractContent">
+								Prevent content extraction </label>
+						</div>
+						<div class="form-check">
+							<input class="form-check-input" type="checkbox"
+								id="canExtractForAccessibility"
+								name="canExtractForAccessibility"> <label
+								class="form-check-label" for="canExtractForAccessibility">
+								Prevent extraction for accessibility </label>
+						</div>
+						<div class="form-check">
+							<input class="form-check-input" type="checkbox"
+								id="canFillInForm" name="canFillInForm"> <label
+								class="form-check-label" for="canFillInForm"> Prevent
+								filling in form </label>
+						</div>
+						<div class="form-check">
+							<input class="form-check-input" type="checkbox" id="canModify"
+								name="canModify"> <label class="form-check-label"
+								for="canModify"> Prevent modification </label>
+						</div>
+						<div class="form-check">
+							<input class="form-check-input" type="checkbox"
+								id="canModifyAnnotations" name="canModifyAnnotations"> <label
+								class="form-check-label" for="canModifyAnnotations">
+								Prevent annotation modification </label>
+						</div>
+						<div class="form-check">
+							<input class="form-check-input" type="checkbox" id="canPrint"
+								name="canPrint"> <label class="form-check-label"
+								for="canPrint"> Prevent printing </label>
+						</div>
+						<div class="form-check">
+							<input class="form-check-input" type="checkbox"
+								id="canPrintFaithful" name="canPrintFaithful"> <label
+								class="form-check-label" for="canPrintFaithful"> Prevent
+								printing different formats </label>
+						</div>
+
+					</div>
+					<br />
+					<div class="form-group text-center">
+						<button type="submit" class="btn btn-primary">Change</button>
+					</div>
+
+				</form>
+			</div>
+		</div>
+	</div>
+	</div>
+		<div th:insert="~{fragments/footer.html :: footer}"></div>
+	</div>
+</body>
+</html>

src/main/resources/templates/security/remove-password.html

@@ -0,0 +1,38 @@
+<!DOCTYPE html>
+<html lang="en" xmlns:th="http://www.thymeleaf.org">
+
+<th:block th:insert="~{fragments/common :: head(title='Remove password')}"></th:block>
+
+<body>	<div id="page-container">
+		<div id="content-wrap">
+	<div th:insert="~{fragments/navbar.html :: navbar}"></div>
+	<br>
+	<br>
+	<div class="container">
+		<div class="row justify-content-center">
+			<div class="col-md-6">
+				<h2>Remove password (Decrypt)</h2>
+
+				<form action="add-password" method="post"
+					enctype="multipart/form-data">
+					<div class="form-group">
+						<label>Select PDF to Decrypt</label>
+						<div class="custom-file">
+							<input type="file" class="custom-file-input" id="fileInput"
+								name="fileInput" required> <label
+								class="custom-file-label">Choose PDF</label>
+						</div>
+					</div>
+					<div class="form-group">
+						<label>Password</label> <input type="password"
+							class="form-control" id="password" name="password" required>
+					</div>
+				</form>
+			</div>
+		</div>
+	</div>
+	</div>
+		<div th:insert="~{fragments/footer.html :: footer}"></div>
+	</div>
+</body>
+</html>

src/main/resources/templates/split-pdfs.html

@@ -1,12 +1,14 @@
 <!DOCTYPE html>
 <html lang="en" xmlns:th="http://www.thymeleaf.org">
-<head>
-<th:block th:insert="~{common :: head}"></th:block>
-<title>S-PDF Split PDFs</title>
-</head>
+
+<th:block th:insert="~{fragments/common :: head(title='Split')}"></th:block>
+
 
 <body>
-	<div th:insert="~{navbar.html :: navbar}"></div>
+
+ <div id="page-container">
+   <div id="content-wrap">
+	<div th:insert="~{fragments/navbar.html :: navbar}"></div>
 	<br>
 	<br>
 	<div class="container">
@@ -35,15 +37,17 @@
 					<div class="form-group">
 						<label for="pages">Enter pages to split on:</label> <input
 							type="text" class="form-control" id="pages" name="pages"
-							placeholder="1,3,5-10">
+							placeholder="1,3,5-10" required>
 					</div>
 					<br>
 					<button type="submit" class="btn btn-primary">Submit</button>
 				</form>
-				<th:block th:insert="~{common :: filelist}"></th:block>
+				<th:block th:insert="~{fragments/common :: filelist}"></th:block>
 			</div>
 		</div>
 	</div>
-	<div th:insert="~{footer.html :: footer}"></div>
+	</div>
+	<div th:insert="~{fragments/footer.html :: footer}"></div>
+	</div>
 </body>
 </html>