💧 PDF300

Watermark a large PDF

The browser version does this without sending your file anywhere, and that is the one to use first. This one is for files a browser tab struggles with.

Open the tool

Runs on our server — the file is uploaded, processed and sent back.

How it works

  1. Add the PDFThe file is sent to the server.
  2. Type the wordsDRAFT, a name, a date. Set how dark and how slanted.
  3. DownloadSave the watermarked file.

Questions

Do my files get uploaded?

Yes — this one runs on a server, so the file is sent over the network and processed there. If you would rather nothing left your device, use the browser tools on the main page instead.

Is there a watermark or a sign-up?

Neither. No account, no watermark on the output. The practical limit is your device memory — large scanned files use more of it.

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