changes

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

@@ -135,7 +135,9 @@ public class MergeController {
             throw ex;
         } finally {
             for (File file : filesToDelete) {
-                file.delete();
+                if (file != null) {
+                    Files.deleteIfExists(file.toPath());
+                }
             }
         }
     }

src/main/java/stirling/software/SPDF/controller/api/PdfOverlayController.java

@@ -87,12 +87,12 @@ public class PdfOverlayController {
         } finally {
             for (File overlayPdfFile : overlayPdfFiles) {
                 if (overlayPdfFile != null) {
-                    overlayPdfFile.delete();
+                    Files.deleteIfExists(overlayPdfFile.toPath());
                 }
             }
             for (File tempFile : tempFiles) { // Delete temporary files
                 if (tempFile != null) {
-                    tempFile.delete();
+                    Files.deleteIfExists(tempFile.toPath());
                 }
             }
         }

src/main/java/stirling/software/SPDF/controller/api/SplitPDFController.java

@@ -121,7 +121,7 @@ public class SplitPDFController {
 
         logger.info("Successfully created zip file with split documents: {}", zipFile.toString());
         byte[] data = Files.readAllBytes(zipFile);
-        Files.delete(zipFile);
+        Files.deleteIfExists(zipFile);
 
         // return the Resource in the response
         return WebResponseUtils.bytesToWebResponse(

src/main/java/stirling/software/SPDF/controller/api/SplitPdfBySectionsController.java

@@ -63,10 +63,7 @@ public class SplitPdfBySectionsController {
             MergeController mergeController = new MergeController();
             ByteArrayOutputStream baos = new ByteArrayOutputStream();
             mergeController.mergeDocuments(splitDocuments).save(baos);
-            return WebResponseUtils.bytesToWebResponse(
-                    baos.toByteArray(),
-                    filename + "_split.pdf",
-                    MediaType.APPLICATION_OCTET_STREAM);
+            return WebResponseUtils.bytesToWebResponse(baos.toByteArray(), filename + "_split.pdf");
         }
         for (PDDocument doc : splitDocuments) {
             ByteArrayOutputStream baos = new ByteArrayOutputStream();
@@ -98,7 +95,7 @@ public class SplitPdfBySectionsController {
             e.printStackTrace();
         } finally {
             data = Files.readAllBytes(zipFile);
-            Files.delete(zipFile);
+            Files.deleteIfExists(zipFile);
         }
 
         return WebResponseUtils.bytesToWebResponse(

src/main/java/stirling/software/SPDF/controller/api/converters/ConvertWebsiteToPDF.java

@@ -59,7 +59,7 @@ public class ConvertWebsiteToPDF {
             pdfBytes = Files.readAllBytes(tempOutputFile);
         } finally {
             // Clean up the temporary files
-            Files.delete(tempOutputFile);
+            Files.deleteIfExists(tempOutputFile);
         }
         // Convert URL to a safe filename
         String outputFilename = convertURLToFileName(URL);

src/main/java/stirling/software/SPDF/controller/api/misc/AutoSplitPdfController.java

@@ -118,7 +118,7 @@ public class AutoSplitPdfController {
             e.printStackTrace();
         } finally {
             data = Files.readAllBytes(zipFile);
-            Files.delete(zipFile);
+            Files.deleteIfExists(zipFile);
         }
 
         return WebResponseUtils.bytesToWebResponse(

src/main/java/stirling/software/SPDF/controller/api/misc/StampController.java

@@ -185,10 +185,12 @@ public class StampController {
             try (InputStream is = classPathResource.getInputStream();
                     FileOutputStream os = new FileOutputStream(tempFile)) {
                 IOUtils.copy(is, os);
+                font = PDType0Font.load(document, tempFile);
+            } finally {
+                if (tempFile != null) {
+                    Files.deleteIfExists(tempFile.toPath());
+                }
             }
-
-            font = PDType0Font.load(document, tempFile);
-            tempFile.deleteOnExit();
         }
 
         contentStream.setFont(font, fontSize);

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

@@ -150,10 +150,10 @@ public class WatermarkController {
             try (InputStream is = classPathResource.getInputStream();
                     FileOutputStream os = new FileOutputStream(tempFile)) {
                 IOUtils.copy(is, os);
+                font = PDType0Font.load(document, tempFile);
+            } finally {
+                if (tempFile != null) Files.deleteIfExists(tempFile.toPath());
             }
-
-            font = PDType0Font.load(document, tempFile);
-            tempFile.deleteOnExit();
         }
 
         contentStream.setFont(font, fontSize);

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

@@ -38,14 +38,14 @@ public class GeneralUtils {
                     @Override
                     public FileVisitResult visitFile(Path file, BasicFileAttributes attrs)
                             throws IOException {
-                        Files.delete(file);
+                        Files.deleteIfExists(file);
                         return FileVisitResult.CONTINUE;
                     }
 
                     @Override
                     public FileVisitResult postVisitDirectory(Path dir, IOException exc)
                             throws IOException {
-                        Files.delete(dir);
+                        Files.deleteIfExists(dir);
                         return FileVisitResult.CONTINUE;
                     }
                 });