Protect your PDFs and images with watermarks

Use text or your own image (like your logo) as the watermark. All processing happens in your browser: your files are never uploaded to any server.

Drag your files here

Or click to select them from your computer

PDF, PNG, JPG, JPEG, WebP · up to 200 MB · max. 50 files

Your file never leaves your computer. There's no server receiving it, no database storing it, nobody watching what you upload.

Everything happens in your browser. Nothing goes through any server.

No server uploads

Not ours, not anyone else's. Your file stays where it is.
We don't measure your content

We only measure visits if you accept. Analytics load only with your explicit consent. Your files remain invisible to us.
We don't see your content

We never know which file you upload or what's inside it. Impossible.
Works offline

Once the page is loaded, you can disconnect from the Internet. The watermark is applied just the same.
Your files live in memory only

They are processed in the browser's memory and downloaded straight back. No cache, no local storage, no history.
Open source

All the code is public on GitHub: you can review exactly what the page does before trusting it with your documents.