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Add watermark

Stamp text across every page.

License

Privacy

Processed entirely on your device

Your files never leave your device.

About Add watermark

Add watermark stamps the text you choose across every page of a PDF, such as DRAFT, CONFIDENTIAL or a name, and saves the marked file. It runs in your browser, so a document that needs a watermark because it is sensitive is never uploaded.

  • Mark a draft
  • Label ID copies with their purpose
  • Protect a sample

How to add watermark

  1. Drop the PDF

    Up to 500 MB.

  2. Type the watermark

    Enter the text; it is laid across each page.

  3. Save the PDF

    Download the watermarked file.

Why your file never leaves your device

Most online tools upload your file to a server, work on it there, and keep a copy for a while. Thryve PDF does the work inside your browser instead, with code that runs on your own device, so there is no upload, no copy on a server and nothing to delete afterwards. Close the tab and the file is gone from memory. It also means the tools keep working on a slow connection once the page has loaded.

Questions, answered

Can I write a purpose on a copy of my ID?
Yes. Many people stamp a copy of an ID with the purpose and date before sharing it, such as "For bank KYC only". Type that as the watermark.
Can I use an image as the watermark?
Yes. Switch the watermark to an image and drop a PNG, JPG or WebP; a logo with a transparent background works best. It sits upright in the centre of every page, while text is laid diagonally.
Is my PDF uploaded to a server?
No. The PDF is opened and processed inside your browser tab, on your own device, and the result is saved straight back to it. Thryve has no server that receives files.
Is it free?
Yes. This page gives 10 free exports every rolling 30 days, with no account. Thryve Pro, $9.99 once with no subscription, removes the limit on every Thryve PDF, Photo, Media and Invoice page.
Do I need to sign up?
No. Drop a file and start. An account is only needed to buy Thryve Pro, so the licence can follow you between devices.
Does it work on a phone?
Yes, in Chrome, Safari, Edge or Firefox on Android and iPhone, as well as on Windows, Mac and Linux. Since the work happens on the device, a large file takes longer on a phone than on a laptop.

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