Watermark a copy of your ID
Make a copy of your passport or licence useless to anyone but the person you sent it to.
- Nothing is uploaded
- Works offline after first visit
- Open source
- The limit is your device’s memory (phones hold less)
Cover a photo or scan of your passport, driving licence or ID card with a repeated watermark saying who it is for, before you send it. It is free, and your files are not uploaded: everything runs in your browser on your device. The limit is your device’s memory (phones hold less)
Done
Open the network tab. Your files never appear in it.
Add files and run the tool to see every request this tab makes.
Your files are processed on this device and never sent to a server. Reload the page to clear everything from memory.
Landlords, letting agents, employers, hotels, car hire firms and online services all ask for a copy of your passport, driving licence or ID card, and each copy is a chance for identity fraud if it leaks from their inbox or their shared drive. A watermark across the whole image, naming who the copy is for and the date, makes it far less useful to anyone else: a bank or a fraudster’s buyer can see it was only ever meant for one purpose.
This page repeats your text across the photo at an angle, like the watermarks some governments now recommend for ID copies (France’s FranceCopy app and the Dutch KopieID app do the same thing). The pattern covers every corner, so it cannot be cropped out, and it is light enough that the details the recipient needs stay readable.
Sending your ID to yet another website to add the watermark would defeat the point, so the image is processed entirely in your browser. Nothing is uploaded, and the page works offline after one visit and a short wait.
How it works
- Drop a photo or scan of the ID, or tap to pick it.
- Replace the text with who it is for, the purpose and the date, for example “Copy for Lettings Ltd, flat application, 3 Oct 2026”, and check the preview.
- Download the watermarked copy and send that instead of the original.
In your browser, not on a server
Your browser decodes each photo (libheif or the Squoosh decoders step in for HEIC, AVIF and JPEG XL) and draws it on a canvas in your tab at full size. The text is drawn on top with your device’s own fonts at the chosen opacity, sized to the photo’s shorter side so the same setting looks alike on every photo, and the canvas is saved as JPG, PNG or WebP by the browser’s own encoder.
Compared with upload-based tools: Watermark sites and apps upload the photos you most want to protect, the unpublished ones, and several add their own branding on the free tier. Here the photos never leave your device, and the limit on how many you do at once is your device’s memory (phones hold less).
Verify it yourself. Give the page a short while after one visit to save itself for offline use, then turn off Wi-Fi or switch to airplane mode and run the tool again. Or open your browser's developer tools (F12, or Cmd-Option-I on a Mac), pick the Network tab, and watch it while you convert. The panel above does the same count for you.
Questions
What should the watermark say?
Who the copy is for, why, and the date: “Copy for Lettings Ltd, flat application, 3 Oct 2026”. Specific is better than a generic COPY, because it shows exactly where a leaked image came from and makes it useless for opening an account elsewhere.
Will the recipient still accept it?
For a copy they only need to read, almost always: the name, number and photo stay visible under the watermark. Where the law requires them to see the original document, such as some right-to-work or anti-money-laundering checks done in person, a watermark does not change that, but for an emailed copy it is widely recommended.
Does it work on a PDF scan?
This page takes photos and image scans. For a PDF, use the watermark PDF tool with the Repeated placement, which does the same across every page.
Should I remove the photo’s location data too?
Yes, if the photo was taken on a phone: the file can include where it was taken, often your home. Run the watermarked copy through the remove EXIF tool before sending it.
Is the file uploaded anywhere?
No. There is no server in this process. The page is a static file and the work is done by code running inside your browser tab. Give the page a short while after one visit to save itself for offline use; then you can turn off Wi-Fi and it still works.
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Other conversions
- JPG to TIFF
- PNG to TIFF
- ICO to PNG
- HEIC to PNG
- HEIF to JPG
- PNG to JPG
- JPG to PNG
- WebP to PNG
- WebP to JPG
- PNG to WebP
- PNG compressor
- Reduce PNG size
- GIF compressor
- Reduce GIF size
- Make background transparent
- Add a white background
- Blur background
- 2x2 photo maker
- 35x45 mm photo maker
- Increase image resolution
- Enlarge image
- Magic eraser
Guides
- How to add a watermark to a photoPhone camera rolls have no built-in watermark feature. Here is what actually adds text to a photo before you share it.
- How to add text to a photoEvery phone and computer can do it, but the controls differ and the text is often hard to read on a busy picture. Here is each built-in way, and a private browser option.