Stirling-PDF/src/main/java/stirling/software/SPDF/controller/OverlayImageController.java

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2023-01-27 19:23:40 +01:00
package stirling.software.SPDF.controller;
import java.io.IOException;
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.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 OverlayImageController {
private static final Logger logger = LoggerFactory.getLogger(OverlayImageController.class);
@GetMapping("/add-image")
public String overlayImage() {
return "add-image";
}
@PostMapping("/add-image")
public ResponseEntity<byte[]> overlayImage(@RequestParam("fileInput") MultipartFile pdfFile,
@RequestParam("fileInput2") MultipartFile imageFile, @RequestParam("x") float x,
@RequestParam("y") float y) {
try {
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);
} catch (IOException e) {
logger.error("Failed to add image to PDF", e);
return new ResponseEntity<>(HttpStatus.BAD_REQUEST);
}
}
}