Create app.py

app.py

@@ -0,0 +1,82 @@
+import gradio as gr
+from PIL import Image
+from zopflipng import png_optimize
+import os
+
+def convert_webp(input_path, compression_level=6, lossless_mode=False):
+    """Convert WEBP to PNG with compression options and Zopfli optimization"""
+    try:
+        # Convert WEBP to temporary PNG
+        with Image.open(input_path) as img:
+            temp_path = "temp.png"
+            img.convert("RGB").save(
+                temp_path,
+                format="PNG",
+                compress_level=compression_level,
+                optimize=True
+            )
+            
+        # Apply ZopfliPNG optimization if enabled
+        if lossless_mode:
+            with open(temp_path, "rb") as f:
+                original_data = f.read()
+            
+            optimized_data, code = png_optimize(
+                original_data,
+                num_iterations=15,
+                lossy_8bit=False,
+                lossy_transparent=False
+            )
+            
+            if code == 0:
+                with open(temp_path, "wb") as f:
+                    f.write(optimized_data)
+            else:
+                raise RuntimeError("ZopfliPNG optimization failed")
+
+        return temp_path
+    
+    except Exception as e:
+        raise gr.Error(f"Conversion failed: {str(e)}")
+
+# Create Gradio interface
+with gr.Blocks(title="WEBP to PNG Professional Converter") as app:
+    gr.Markdown("## 🔄 Professional WEBP to PNG Converter")
+    
+    with gr.Row():
+        with gr.Column():
+            input_img = gr.Image(
+                type="filepath",
+                label="Upload WEBP Image",
+                height=300
+            )
+            comp_slider = gr.Slider(
+                minimum=0,
+                maximum=9,
+                value=6,
+                step=1,
+                label="PNG Compression Level (0=fast, 9=small)",
+                info="Standard DEFLATE compression"
+            )
+            lossless_toggle = gr.Checkbox(
+                label="Enable Professional Lossless Mode (ZopfliPNG)",
+                info="Advanced compression (slower but smaller files)"
+            )
+            convert_btn = gr.Button("Start Conversion", variant="primary")
+        
+        with gr.Column():
+            output_img = gr.Image(
+                label="Converted PNG Result",
+                type="filepath",
+                height=400,
+                interactive=False
+            )
+
+    convert_btn.click(
+        fn=convert_webp,
+        inputs=[input_img, comp_slider, lossless_toggle],
+        outputs=output_img
+    )
+
+if __name__ == "__main__":
+    app.launch()