Create app.py

app.py

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+import gradio as gr
+from docling.document_converter import DocumentConverter
+
+# 1) Initialize
+converter = DocumentConverter()
+
+# 2) Conversion function
+def convert(file, out_format):
+    # load & convert
+    doc = converter.load_file(file.name)
+    if out_format == "Markdown":
+        return doc.to_markdown()
+    if out_format == "HTML":
+        return doc.to_html()
+    if out_format == "JSON":
+        return doc.to_json()
+    # …add more formats if you like
+
+# 3) Build Gradio interface
+with gr.Blocks() as demo:
+    # — Top: explanatory text
+    gr.Markdown(
+        """
+        # 📝 Docling Demo
+        Upload any supported file (PDF, DOCX, PPTX, images, audio…),
+        choose your output format, and see the result instantly.
+        """
+    )
+    # — Main row: uploader + options + convert button
+    with gr.Row():
+        inp = gr.File(label="📂 Upload your document", file_count="single",
+                      file_types=[".pdf",".docx",".pptx",".xlsx",
+                                  ".html",".png",".jpg",".jpeg",".tiff",
+                                  ".wav",".mp3"])
+        fmt = gr.Dropdown(choices=["Markdown","HTML","JSON"],
+                          label="🔄 Select output format")
+        btn = gr.Button("Convert")
+    # — Output pane
+    out = gr.Textbox(label="📄 Converted output", lines=20)
+    # — Wire it up
+    btn.click(fn=convert, inputs=[inp, fmt], outputs=out)
+
+# 4) Launch
+demo.launch()