Watermark PDF

Get any file to the size you need. Privately.

1 Open this page and add the file. Watermark PDF starts in the browser you already have open.2 Run the tool. If this version cannot do the job honestly, it says so instead of inventing a result.3 Download the file that was built on this device. Closing the tab drops the bytes.

About this tool

Watermark PDF draws a short text mark, such as Draft, across the pages. The mark is visible content, not a sticky note every reader can toggle off. It is not a security control and it is not redaction: the words underneath remain readable. Use it so a draft is obviously a draft. Do not use it to hide a figure.

Watermark PDF stays on this device. The download is the copy you keep, and Weesize does not store a second one. Close the tab when you are finished and the bytes are gone.

  • No upload: the draft mark is drawn locally, so the unreleased file is not uploaded to be stamped.
  • Speed: the file does not travel to a server and back, so the wait is only the work itself.
  • Quality: the original is kept when the new file would be worse or is not actually smaller.
FAQ
Does “Watermark PDF” upload my file?

Watermark PDF reads the file in this tab. There is no upload step and no account.

What will “Watermark PDF” actually change?

The mark is part of the page content. It is a label, not encryption and not redaction.

When is “Watermark PDF” the wrong job?

Do not watermark a page in order to hide a number. The number is still there.

How do I check the result of “Watermark PDF”?

Open a page and read the mark. It should say what you typed, and the text under it should still be readable.

Can I run “Watermark PDF” with Wi-Fi off?

Load this page, then turn Wi-Fi off and run Watermark PDF again. A finished result is the proof that the file was not sent anywhere.

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Last updated 2026-09-27.