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PDF Watermark illustration

PDF Watermark

Add a diagonal text watermark to every PDF page.

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Your files are processed in your browser and never uploaded to our servers.
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How to use PDF Watermark

follow along with the steps below

Step 1 illustration1

Choose your PDF file.

Step 2 illustration2

Set the option (if there is one) and press the button.

Step 3 illustration3

Your new PDF downloads automatically.

PDF tools illustration
PDF tools
Private tools that run in your browser
Private in your browser
Laptop and phone: works on any device
Works on any device

About PDF Watermark

PDF Watermark is a free online tool from Supreme Pro. Add a diagonal text watermark to every PDF page. It runs in your browser, so there is nothing to install and no account to create. PDF work is one of the most common reasons people look for an online tool, and because this one runs locally your documents are never uploaded.

Common uses

  • Prepare documents for email, printing or upload to an online portal
  • Fix a file that is too big, in the wrong order or rotated
  • Combine and tidy PDFs without installing desktop software

Tips for best results

  • Keep a copy of the original file before you download the result
  • Very large files can be slow on older phones, so close other tabs first
  • Open the finished PDF and check it before you send it on

Features

  • Free, with no account needed
  • Private: runs entirely on your device
  • Instant results, no waiting
  • Works on phones, tablets and computers

Frequently Asked Questions about PDF Watermark

Quick answers about using PDF Watermark.

What is the PDF Watermark?

The PDF Watermark is a free online tool from Supreme Pro. Add a diagonal text watermark to every PDF page.

How do I use the PDF Watermark?

Choose your PDF file. Set the option (if there is one) and press the button. Your new PDF downloads automatically.

Is the PDF Watermark free?

Yes. It is free to use and needs no account or sign-up.

Is my data safe?

Yes. Everything runs in your browser, so your input stays on your own device and is not uploaded to our servers.

Does the PDF Watermark work on mobile?

Yes. The page is responsive and works on phones, tablets and computers.

What other tools can I use after the PDF Watermark?

You can try Merge PDF, Split PDF or Compress PDF. All of them are free and run in your browser. You can also browse every one of our PDF tools.

Will PDF Watermark change the layout or quality of my PDF?

PDF Watermark works on the pages of your PDF directly instead of rebuilding the document, so text, fonts and images keep their original look in most cases. PDFs with unusual fonts, forms or encryption can behave differently, so open the result and check it before you send it on.

Can PDF Watermark work with password-protected PDFs?

Files protected with a password usually cannot be processed. Remove the protection in the program that created the PDF, or ask the owner for an unlocked copy, then try again.

Do I need an account to use the PDF Watermark?

No. The PDF Watermark works without an account or sign-up. Open the page, use the tool and download or copy the result.

Related tools

Why people choose Supreme Pro

Fast results
Fast resultsTools open instantly and finish in seconds.
Private by design
Private by designFiles stay in your browser and are never uploaded.
Works everywhere
Works everywhereUse it on a phone, tablet or computer.
Free forever
Free foreverNo sign-up, no watermark, no hidden fees.