How to combine a front and back ID photo
- Add the front photo. Drag it onto the Front box or click to browse. Dropping a new photo replaces the old one.
- Add the back photo. Same thing in the Back box, right next to it.
- Pick a layout. Stacked places Front above Back, Side by side places them next to each other. Both keep every photo at full size, nothing cropped.
- Choose whether to show labels. Leave "Show Front/Back labels" checked to print small captions under each photo, or uncheck it for a plain combined image.
- Pick a format and download. Choose PDF, PNG or JPG, then press Download combined ID. One file saves straight to your device.
Why combine the front and back of an ID into one file
Job applications, visa forms, bank onboarding and countless other upload portals ask for "a copy of your ID" but only give you a single file field. A phone typically produces two separate photos, one of the front and one of the back, so people end up emailing themselves two attachments, editing them together in a photo app, or giving up and uploading just one side. This tool exists for that exact gap: it takes the two photos you already have and produces one file that satisfies a single-upload requirement, without you needing any image editing skill.
The one rule this tool follows by default is that nothing gets cropped. A generic collage or grid tool typically fills each cell by cropping the photo to match the cell's shape, which is fine for a casual photo collage but risky for an identity document: a crop that shaves a few millimeters off an edge can cut off a chip, a signature, a hologram strip, or, on a passport, the machine-readable code printed along the bottom. Instead, both the Stacked and Side by side layouts scale each photo proportionally, preserving its exact aspect ratio, so the whole photo always makes it into the final file. That is still the default (Auto crop mode). If you deliberately want to trim a photo, for example to cut a table or background out from around the card, switching to Custom crop mode opens a crop box for that image before it is added, but nothing is ever cropped unless you choose that mode and confirm a region yourself.
Nothing is uploaded, everything runs in your browser
Because these are identity documents, privacy is the whole point of building this as a browser tool rather than a web service. When you add a photo, your browser reads the file locally and draws it onto a canvas element on the page you are already looking at. No copy of the image is transmitted to ToolFern's servers or anywhere else, and there is no server-side processing step at all. Closing the tab discards everything. The same applies to the final combined file: it is generated on your device and handed straight to your browser's own download mechanism.
Frequently asked questions
Are my ID photos uploaded anywhere?
No. Both photos are read and combined right in your browser tab, on your own device. Nothing is sent to a server at any point, which matters when the files are a CNIC, passport page, driver license or any other identity document.
Will any part of my ID be cropped or cut off?
Not unless you ask for it. The default Auto crop mode scales each photo proportionally to fit the layout and never crops, which keeps a chip, signature, hologram, or a passport's machine-readable code strip fully visible. Switching to Custom crop mode opens a crop box for the photo you are adding, so you can deliberately trim a background or table edge, but that only happens on the images you choose to crop.
Does this tool verify or check my ID?
No. This tool only combines two images you already have into one file. It does not read, verify, validate or check the authenticity of anything on the document.
Should I download as PDF, PNG or JPG?
PDF is usually the safest choice, since most forms and portals that ask for "one file" for an ID expect a document rather than an image. Pick PNG if you need a lossless image, or JPG for the smallest file size.
Can I use a PDF instead of a photo, and choose the download file name?
Yes. Either the Front or Back slot accepts a PDF page as well as a photo; if the PDF has more than one page, you pick which one to use before it is added. Before downloading, you can also type your own name into the File name field, it is used in place of the default id-card-combined.
Related: turn photos into a PDF · make a photo collage · compress images.