diff --git a/src/main/java/cc/fascinated/backend/controller/PasteController.java b/src/main/java/cc/fascinated/backend/controller/PasteController.java
index 8119247..1fedb9e 100644
--- a/src/main/java/cc/fascinated/backend/controller/PasteController.java
+++ b/src/main/java/cc/fascinated/backend/controller/PasteController.java
@@ -3,6 +3,7 @@ package cc.fascinated.backend.controller;
 import cc.fascinated.backend.model.Paste;
 import cc.fascinated.backend.service.PasteService;
 import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.http.HttpHeaders;
 import org.springframework.http.ResponseEntity;
 import org.springframework.web.bind.annotation.*;
 
@@ -20,8 +21,8 @@ public class PasteController {
     }
 
     @PostMapping(value = "/upload")
-    public ResponseEntity<?> uploadPaste(@RequestBody String content) {
-        String id = pasteService.createPaste(content);
+    public ResponseEntity<?> uploadPaste(@RequestBody String content, @RequestHeader(HttpHeaders.CONTENT_TYPE) String contentType) {
+        String id = pasteService.createPaste(content, contentType);
         return ResponseEntity.ok(Map.of("id", id));
     }
 
diff --git a/src/main/java/cc/fascinated/backend/service/PasteService.java b/src/main/java/cc/fascinated/backend/service/PasteService.java
index 3574f4e..e67b904 100644
--- a/src/main/java/cc/fascinated/backend/service/PasteService.java
+++ b/src/main/java/cc/fascinated/backend/service/PasteService.java
@@ -44,7 +44,7 @@ public class PasteService {
      * @param content The content of the paste.
      * @return The id of the paste.
      */
-    public String createPaste(String content) {
+    public String createPaste(String content, String contentType) {
         int length = content.length();
         long before = System.currentTimeMillis();
         log.info("Creating a new paste. (characters: {})", length);
@@ -52,12 +52,19 @@ public class PasteService {
         // Check if the content is too large.
         if (length > uploadSizeLimit && uploadSizeLimit != -1) {
             log.info("Paste didn't meet the size requirements. (characters: {})", length);
-            throw new BadRequestException("The paste content is too large, the limit is " + uploadSizeLimit + " characters");
+            throw new BadRequestException("The paste content is too large, the limit is " + uploadSizeLimit + " characters, not uploading...");
+        }
+
+        // Ensure the paste content type is valid.
+        if (contentType.contains("image") || contentType.contains("video") || contentType.contains("audio")) {
+            log.info("Paste content type is not supported. (content type: {})", contentType);
+            throw new BadRequestException("The paste content type is not supported, not uploading...");
         }
 
         // Ensure the paste content does not contain a file header.
         if (FileHeaderChecker.containsFileHeader(content)) {
-            throw new BadRequestException("The paste content contains a file header");
+            log.info("Paste content contains a file header, not uploading...");
+            throw new BadRequestException("The paste content contains a file header, not uploading...");
         }
 
         // Save the paste to the database.