Merge ID Card Front and Back Online
Merging the front and back of an ID card means arranging both sides onto a single page so they can be printed together, submitted electronically, or kept for reference. Scankaro is a free browser-based tool that does this without requiring an account or uploading your images to a server.
Why use an A4 layout?
Printing both sides of an ID card on one A4 page saves paper and makes the result easier to handle. Instead of printing two separate pages or manually arranging images in a word processor, Scankaro generates the layout for you at print-ready resolution.
How Scankaro works
Camera scanning
Capture both sides directly with your phone or webcam — no separate camera app needed.
File upload
Already have images? Upload JPG, PNG, or WebP files from your device or drag and drop them in.
Smart crop
Drag the corner handles to remove unwanted edges. Auto-detect can find the document outline for you.
Rotation
Straighten tilted photos with 90-degree buttons, a fine-rotation slider, or auto-straighten.
Auto-straighten
Automatically detect and correct tilted documents with a single click — no manual adjustment needed.
A4 preview
See the combined front-and-back layout on an A4 page before downloading. Choose side-by-side or top-and-bottom.
Step-by-step workflow
- Add the front image by scanning with your camera or uploading a file.
- Add the back image the same way.
- Open the editor to crop, rotate, or auto-straighten each image independently.
- Choose a layout — side by side or top and bottom.
- Click "Generate A4 Layout" to combine both images on one A4 page.
- Review the preview, then download as PDF, JPG, or PNG.
Practical tips
- Place the document on a flat, well-lit surface before scanning.
- Keep the camera parallel to the document to minimize tilt and distortion.
- Make sure all four corners of the document are visible in the frame.
- Use auto-straighten if the photo is slightly tilted.
- Always check the preview before downloading.
FAQ
What does merging an ID card mean?
Merging means placing the front and back images of an ID card onto a single page so both sides can be printed or shared together.
Do I need to install anything?
No. Scankaro runs entirely in your web browser. No app or plugin installation is required.
Will my images be uploaded to a server?
No. All processing happens locally in your browser. Your images are not sent to or stored on any server.
Can I merge images on my phone?
Yes. Scankaro works on mobile browsers. You can use your phone camera to scan and the touch-friendly editor to crop and adjust.
What file formats can I download?
You can download the merged A4 layout as a PDF, JPG, or PNG file. All three match the on-screen preview exactly.