Create app.py

app.py

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+import gradio as gr
+from PIL import Image
+import tempfile
+import os
+
+def images_to_pdf(image_files):
+    """
+    Takes a list of image file paths, converts them to RGB, 
+    and saves them as a single PDF in a temporary location.
+    """
+    if not image_files:
+        return None
+
+    pil_images = []
+    
+    try:
+        # Loop through file paths received from Gradio
+        for file_path in image_files:
+            try:
+                img = Image.open(file_path)
+                # Convert RGBA (transparent) to RGB to ensure PDF compatibility
+                if img.mode == 'RGBA':
+                    img = img.convert('RGB')
+                pil_images.append(img)
+            except Exception as e:
+                print(f"Error processing file {file_path}: {e}")
+                continue
+
+        if not pil_images:
+            return None
+
+        # Create a temporary file for the PDF output
+        # suffix='.pdf' is crucial so Gradio knows how to serve it back
+        temp_pdf = tempfile.NamedTemporaryFile(delete=False, suffix=".pdf")
+        output_path = temp_pdf.name
+        
+        # Save the first image and append the rest
+        pil_images[0].save(
+            output_path, 
+            save_all=True, 
+            append_images=pil_images[1:]
+        )
+        
+        return output_path
+
+    except Exception as e:
+        print(f"Error creating PDF: {e}")
+        return None
+
+# Define the Gradio Interface
+with gr.Blocks(title="Image to PDF Converter") as app:
+    gr.Markdown("# 📄 Images to PDF API")
+    gr.Markdown("Upload multiple images to convert them into a single PDF file. Use via interface or API.")
+    
+    with gr.Row():
+        with gr.Column():
+            img_input = gr.File(
+                file_count="multiple", 
+                file_types=["image"], 
+                label="Upload Images"
+            )
+            convert_btn = gr.Button("Convert to PDF", variant="primary")
+        
+        with gr.Column():
+            pdf_output = gr.File(label="Download PDF")
+
+    convert_btn.click(fn=images_to_pdf, inputs=img_input, outputs=pdf_output)
+
+# Launch with 0.0.0.0 to ensure it runs on Spaces
+if __name__ == "__main__":
+    app.launch(server_name="0.0.0.0")