diff --git a/src/main/java/stirling/software/SPDF/controller/converters/ConvertImgPDFController.java b/src/main/java/stirling/software/SPDF/controller/converters/ConvertImgPDFController.java
index 6e1c624a..25b58297 100644
--- a/src/main/java/stirling/software/SPDF/controller/converters/ConvertImgPDFController.java
+++ b/src/main/java/stirling/software/SPDF/controller/converters/ConvertImgPDFController.java
@@ -61,7 +61,7 @@ public class ConvertImgPDFController {
         boolean singleImage = singleOrMultiple.equals("single");
         byte[] result = null;
         try {
-            result = PdfUtils.convertFromPdf(pdfBytes, imageFormat.toLowerCase(), colorTypeResult, singleImage, Integer.valueOf(dpi));
+            result = PdfUtils.convertFromPdf(pdfBytes, imageFormat.toUpperCase(), colorTypeResult, singleImage, Integer.valueOf(dpi));
         } catch (IOException e) {
             // TODO Auto-generated catch block
             e.printStackTrace();
diff --git a/src/main/java/stirling/software/SPDF/utils/PdfUtils.java b/src/main/java/stirling/software/SPDF/utils/PdfUtils.java
index 76c56cc3..67629c0c 100644
--- a/src/main/java/stirling/software/SPDF/utils/PdfUtils.java
+++ b/src/main/java/stirling/software/SPDF/utils/PdfUtils.java
@@ -107,7 +107,7 @@ public class PdfUtils {
             ByteArrayOutputStream baos = new ByteArrayOutputStream();
             if (singleImage) {
                 // Write the image to the output stream
-                ImageIO.write(images.get(0), "PNG", baos);
+                ImageIO.write(images.get(0), imageType, baos);
 
                 // Log that the image was successfully written to the byte array
                 logger.info("Image successfully written to byte array");
@@ -117,10 +117,10 @@ public class PdfUtils {
                     for (int i = 0; i < images.size(); i++) {
                         BufferedImage image = images.get(i);
                         try (ByteArrayOutputStream baosImage = new ByteArrayOutputStream()) {
-                            ImageIO.write(image, "PNG", baosImage);
+                            ImageIO.write(image, imageType, baosImage);
 
                             // Add the image to the zip file
-                            zos.putNextEntry(new ZipEntry(String.format("page_%d.%s", i + 1, "png")));
+                            zos.putNextEntry(new ZipEntry(String.format("page_%d.%s", i + 1, imageType.toLowerCase())));
                             zos.write(baosImage.toByteArray());
                         }
                     }
diff --git a/src/main/resources/templates/convert/pdf-to-img.html b/src/main/resources/templates/convert/pdf-to-img.html
index ef6c48ee..29307d5d 100644
--- a/src/main/resources/templates/convert/pdf-to-img.html
+++ b/src/main/resources/templates/convert/pdf-to-img.html
@@ -21,6 +21,8 @@
                                 <label th:text="#{pdfToImage.selectText}"></label> 
                                 <select class="form-control" name="imageFormat">
                                     <option value="png">PNG</option>
+                                    <option value="jpg">JPG</option>
+                                    <option value="gif">GIF</option>
                                 </select>
                             </div>
                             <div class="form-group">