Support all image formats - PNG, JPG, JPEG, GIF, WEBP, BMP, TIFF, SVG, etc.

app.py

@@ -168,17 +168,31 @@ def gradio_image_to_base64(image_input) -> Optional[str]:
         if pil_image is None:
             return None
 
+        # Convert image to RGB mode if necessary (some formats like RGBA, P, etc. need conversion)
         try:
-            # Validate image before encoding
-            pil_image.verify()
-            # Reopen after verify (verify closes the image)
-            pil_image = PILImage.open(io.BytesIO(pil_image.tobytes()))
-        except Exception:
-            # If verify fails, try to proceed anyway
-            pass
+            # Convert to RGB if image has transparency or is in a mode that might cause issues
+            if pil_image.mode in ('RGBA', 'LA', 'P'):
+                # Create a white background for transparent images
+                rgb_image = PILImage.new('RGB', pil_image.size, (255, 255, 255))
+                if pil_image.mode == 'P':
+                    pil_image = pil_image.convert('RGBA')
+                rgb_image.paste(pil_image, mask=pil_image.split()[-1] if pil_image.mode in ('RGBA', 'LA') else None)
+                pil_image = rgb_image
+            elif pil_image.mode != 'RGB':
+                # Convert other modes to RGB
+                pil_image = pil_image.convert('RGB')
+        except Exception as convert_error:
+            logger.warning(f"Image mode conversion failed, trying to continue: {str(convert_error)}")
+            # Try to convert anyway
+            try:
+                pil_image = pil_image.convert('RGB')
+            except Exception:
+                pass
 
         try:
             buffered = io.BytesIO()
+            # Save as PNG (universal format) - PIL will handle conversion from any format
+            # PNG supports all color modes and is widely compatible
             pil_image.save(buffered, format="PNG")
             img_str = base64.b64encode(buffered.getvalue()).decode("utf-8")
             return f"data:image/png;base64,{img_str}"
@@ -1209,9 +1223,9 @@ with gr.Blocks(
                             lines=6
                         )
                         bulk_images = gr.File(
-                            label="Upload Images (Optional)",
+                            label="Upload Images (Optional) - All formats supported (PNG, JPG, JPEG, GIF, WEBP, BMP, TIFF, etc.)",
                             file_count="multiple",
-                            file_types=["image"],
+                            file_types=[".png", ".jpg", ".jpeg", ".gif", ".webp", ".bmp", ".tiff", ".tif", ".svg", ".ico", ".heic", ".heif"],
                             height=100
                         )
                         btn_import = gr.Button(