A watermark app that runs in your browser

Fix Watermark is a watermark app you open instead of install. Visit the page in your browser on a phone, tablet or computer, choose your files and add a text or logo watermark. Nothing is uploaded, because the work happens on your device.

What you can do with it

• Photos: add a text or logo watermark to a batch of photos, with the original pixel size kept.
• PDFs: mark every page or a page range. Protected PDFs are left untouched.
• Videos: add a mark to MP4, MOV or WebM files.
• Copyright metadata: write your name and licensing details into a photo without touching its pixels.

On an iPhone, an iPad or an Android phone

Open the page in Safari on an iPhone or iPad, or in Chrome on Android, then tap the drop zone to choose your photos. The page receives only the files you choose, not your whole photo library. Use a current version of your browser. The photo tool relies on a browser feature that arrived in Safari 16.4, Chrome 69, Edge 79 and Firefox 105, and the browser support data puts it at about 96 percent of browsers worldwide. HEIC photos from an iPhone open in Safari 17 and later.

Phones have less memory than computers, so a few limits apply. A photo above what the browser can draw is skipped with a message, which is roughly 67 million pixels on current iPhones and iPads. The PDF tool warns you about very large files. For video, keep the tab in the foreground, and expect 4K to be slow or to fail on a phone.

No install, no account, nothing uploaded

The files you choose are read, marked and saved by code running in your browser tab. The privacy page lists exactly what runs there and the only two requests our server receives, both on the Pro pages. The tools are free for everyday use, and Pro is a one-time purchase for larger batches, longer video, dynamic text and saving into a folder.