Create app.py

app.py

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+
+import streamlit as st
+from PIL import Image
+import io
+
+st.set_page_config(page_title="Merge Images to PDF", layout="centered")
+st.title("🖼️➡️📄 Merge Multiple Images into a PDF")
+
+uploaded_images = st.file_uploader(
+    "Upload multiple images (JPG, PNG, etc.)",
+    type=["png", "jpg", "jpeg"],
+    accept_multiple_files=True
+)
+
+if uploaded_images:
+    st.info(f"{len(uploaded_images)} images uploaded. Processing...")
+
+    # Open and convert to RGB
+    images = [Image.open(img).convert("RGB") for img in uploaded_images]
+
+    # Resize all to same width (use widest image)
+    max_width = max(img.width for img in images)
+    resized_images = []
+
+    for img in images:
+        if img.width != max_width:
+            ratio = max_width / img.width
+            new_height = int(img.height * ratio)
+            img = img.resize((max_width, new_height), Image.LANCZOS)
+        resized_images.append(img)
+
+    # Save all images as PDF (first image + append others)
+    pdf_buffer = io.BytesIO()
+    resized_images[0].save(
+        pdf_buffer,
+        format="PDF",
+        save_all=True,
+        append_images=resized_images[1:]
+    )
+
+    st.success("PDF created successfully!")
+    st.download_button(
+        label="⬇️ Download Merged PDF",
+        data=pdf_buffer.getvalue(),
+        file_name="merged_images.pdf",
+        mime="application/pdf"
+    )