Update app.py

app.py

@@ -2,13 +2,15 @@ import json
 from docling.document_converter import DocumentConverter
 import gradio as gr
 
-def pdf_to_json(source):
+def pdf_to_json(url):
     converter = DocumentConverter()
-    result = converter.convert(source)
+    result = converter.convert(url)
     
     try:
+        # Attempt direct JSON export
         json_output = result.document.export_to_json()
     except AttributeError:
+        # Construct JSON if direct export is unavailable
         content = {
             "title": result.document.title if hasattr(result.document, 'title') else "Untitled",
             "sections": [section.text for section in result.document.sections]
@@ -20,9 +22,10 @@ def pdf_to_json(source):
 # Gradio interface
 iface = gr.Interface(
     fn=pdf_to_json,
-    inputs=gr.Textbox(label="PDF URL"),
+    inputs=gr.Textbox(label="Enter PDF URL"),
     outputs="text",
-    title="PDF to JSON Converter"
+    title="PDF to JSON Converter",
+    description="Convert a PDF from a URL to JSON format."
 )
 
 iface.launch()