Update app.py

app.py

@@ -30,18 +30,19 @@ def compress_pdf(input_file, url, strength):
                 initial_size = pdf_content.tell()
                 pdf_content.seek(0)
 
-        if strength == "Low":
-            compress_level = pikepdf.compress.CompressSettings(level=1)
-        elif strength == "Medium":
-            compress_level = pikepdf.compress.CompressSettings(level=2)
-        else:  # High
-            compress_level = pikepdf.compress.CompressSettings(level=3)
-
         with tempfile.NamedTemporaryFile(delete=False, suffix=".pdf") as temp_file:
             temp_file_path = temp_file.name
 
         pdf = pikepdf.Pdf.open(pdf_content)
-        pdf.save(temp_file_path, compress_streams=True, compress=compress_level)
+        
+        if strength == "Low":
+            compression_params = dict(compress_streams=True, object_stream_mode=pikepdf.ObjectStreamMode.disable)
+        elif strength == "Medium":
+            compression_params = dict(compress_streams=True, object_stream_mode=pikepdf.ObjectStreamMode.preserve)
+        else:  # High
+            compression_params = dict(compress_streams=True, object_stream_mode=pikepdf.ObjectStreamMode.generate)
+
+        pdf.save(temp_file_path, **compression_params)
 
         # Check the compression ratio achieved
         compressed_size = os.path.getsize(temp_file_path)
@@ -56,7 +57,7 @@ def compress_pdf(input_file, url, strength):
         return temp_file_path, f"PDF compressed successfully! Compression achieved: {compression_percentage:.2f}%"
     except Exception as e:
         return None, f"Error compressing PDF: {str(e)}"
-
+        
 def process_and_compress(input_file, url, strength):
     output_file, message = compress_pdf(input_file, url, strength)
     if output_file: