Update app.py

app.py

@@ -2,10 +2,15 @@ import gradio as gr
 from modify_pdf import convert_pdf_to_cdr
 
 def process_pdf(file, scale_text, line_thickness, brightness_factor):
+    if file is None:
+        return "No file uploaded!"
     input_pdf = file.name
     output_pdf = "output.cdr"
-    convert_pdf_to_cdr(input_pdf, output_pdf, scale_text, line_thickness, brightness_factor)
-    return output_pdf
+    try:
+        convert_pdf_to_cdr(input_pdf, output_pdf, scale_text, line_thickness, brightness_factor)
+        return output_pdf
+    except Exception as e:
+        return f"Error: {e}"
 
 interface = gr.Interface(
     fn=process_pdf,