diff --git a/src/main/java/stirling/software/SPDF/controller/api/PdfOverlayController.java b/src/main/java/stirling/software/SPDF/controller/api/PdfOverlayController.java
index ab96d01e..f9938a39 100644
--- a/src/main/java/stirling/software/SPDF/controller/api/PdfOverlayController.java
+++ b/src/main/java/stirling/software/SPDF/controller/api/PdfOverlayController.java
@@ -4,6 +4,7 @@ import io.github.pixee.security.Filenames;
 import java.io.ByteArrayOutputStream;
 import java.io.File;
 import java.io.IOException;
+import java.nio.file.Files;
 import java.util.ArrayList;
 import java.util.HashMap;
 import java.util.List;
@@ -136,7 +137,7 @@ public class PdfOverlayController {
             try (PDDocument overlayPdf = Loader.loadPDF(overlayFiles[overlayFileIndex])) {
                 PDDocument singlePageDocument = new PDDocument();
                 singlePageDocument.addPage(overlayPdf.getPage(pageCountInCurrentOverlay));
-                File tempFile = File.createTempFile("overlay-page-", ".pdf");
+                File tempFile = Files.createTempFile("overlay-page-", ".pdf").toFile();
                 singlePageDocument.save(tempFile);
                 singlePageDocument.close();
 
diff --git a/src/main/java/stirling/software/SPDF/controller/api/misc/StampController.java b/src/main/java/stirling/software/SPDF/controller/api/misc/StampController.java
index 83519094..9a01cf4d 100644
--- a/src/main/java/stirling/software/SPDF/controller/api/misc/StampController.java
+++ b/src/main/java/stirling/software/SPDF/controller/api/misc/StampController.java
@@ -7,6 +7,7 @@ import java.io.File;
 import java.io.FileOutputStream;
 import java.io.IOException;
 import java.io.InputStream;
+import java.nio.file.Files;
 
 import javax.imageio.ImageIO;
 
@@ -169,7 +170,7 @@ public class StampController {
         if (!resourceDir.equals("")) {
             ClassPathResource classPathResource = new ClassPathResource(resourceDir);
             String fileExtension = resourceDir.substring(resourceDir.lastIndexOf("."));
-            File tempFile = File.createTempFile("NotoSansFont", fileExtension);
+            File tempFile = Files.createTempFile("NotoSansFont", fileExtension).toFile();
             try (InputStream is = classPathResource.getInputStream();
                     FileOutputStream os = new FileOutputStream(tempFile)) {
                 IOUtils.copy(is, os);
diff --git a/src/main/java/stirling/software/SPDF/controller/api/security/WatermarkController.java b/src/main/java/stirling/software/SPDF/controller/api/security/WatermarkController.java
index f1d984fa..469f32be 100644
--- a/src/main/java/stirling/software/SPDF/controller/api/security/WatermarkController.java
+++ b/src/main/java/stirling/software/SPDF/controller/api/security/WatermarkController.java
@@ -7,6 +7,7 @@ import java.io.File;
 import java.io.FileOutputStream;
 import java.io.IOException;
 import java.io.InputStream;
+import java.nio.file.Files;
 
 import javax.imageio.ImageIO;
 
@@ -143,7 +144,7 @@ public class WatermarkController {
         if (!resourceDir.equals("")) {
             ClassPathResource classPathResource = new ClassPathResource(resourceDir);
             String fileExtension = resourceDir.substring(resourceDir.lastIndexOf("."));
-            File tempFile = File.createTempFile("NotoSansFont", fileExtension);
+            File tempFile = Files.createTempFile("NotoSansFont", fileExtension).toFile();
             try (InputStream is = classPathResource.getInputStream();
                     FileOutputStream os = new FileOutputStream(tempFile)) {
                 IOUtils.copy(is, os);
diff --git a/src/main/java/stirling/software/SPDF/utils/GeneralUtils.java b/src/main/java/stirling/software/SPDF/utils/GeneralUtils.java
index 1b0c315a..7b6905db 100644
--- a/src/main/java/stirling/software/SPDF/utils/GeneralUtils.java
+++ b/src/main/java/stirling/software/SPDF/utils/GeneralUtils.java
@@ -22,7 +22,7 @@ import org.springframework.web.multipart.MultipartFile;
 public class GeneralUtils {
 
     public static File convertMultipartFileToFile(MultipartFile multipartFile) throws IOException {
-        File tempFile = File.createTempFile("temp", null);
+        File tempFile = Files.createTempFile("temp", null).toFile();
         try (FileOutputStream os = new FileOutputStream(tempFile)) {
             os.write(multipartFile.getBytes());
         }