Add a Watermark to PDF Files Online

Protect and brand your documents by adding a custom text or image watermark. Our free online tool makes it easy to apply watermarks to your PDFs securely.

Open Watermark Tool How it works
Pro tip: For a professional look, reduce the opacity of your watermark so it's visible without distracting from the main content.
Processed
+900,000 files
Rating
4.7/5 (900+)

Watermark PDF — Tool

Upload your PDF, then choose to add a custom text or image watermark. Adjust the style and position to fit your needs.

Your files are always private. The entire watermarking process runs securely in your browser.

How to Add a Watermark to a PDF — Step by Step

Protect your document with a custom watermark in a few easy steps.

  1. Open the widget — click “Open Watermark Tool” or scroll to the tool on this page.
  2. Upload your PDF file — drag & drop your document or select it from your computer.
  3. Choose your watermark type — select whether to add a custom text or an image (like a logo).
  4. Customize the appearance — adjust the font, size, color, opacity, rotation, and position to your liking.
  5. Apply and Download — click the button to add the watermark to all pages, then download your protected PDF.

Common use cases

  • Marking documents with status text like "DRAFT," "CONFIDENTIAL," or "SAMPLE."
  • Adding your company logo to every page for consistent branding.
  • Protecting copyrighted photos, illustrations, or written work from unauthorized use.
  • Indicating the source or authenticity of a document.

Why Use Our Free PDF Watermark Tool?

Our tool is designed for complete customization, ease of use, and total security.

Privacy-First

All watermarking happens in your browser. Your confidential files are never uploaded to any server.

Full Customization

Control the text, font, size, color, image, opacity, rotation, and position of your watermark.

Apply to All Pages

Easily apply your custom watermark consistently across every page of your PDF document with one click.

Instant & Free

Get your watermarked PDF in seconds with no software to install, no sign-ups, and no fees.

Tips & Best Practices for Watermarking

  • For maximum copyright protection, use a large, tiled, and semi-transparent watermark placed diagonally across the page.
  • For subtle branding, a small, semi-transparent company logo in a corner of the header or footer often works best.
  • Use a PNG image with a transparent background for a clean, professional logo watermark that doesn't have a solid-colored box around it.
  • Always keep an original, un-watermarked version of your document saved separately.

Frequently Asked Questions

Ready to protect and brand your PDF?

Open the tool, upload your file, and add a custom text or image watermark in seconds. It's fast, private, and completely free.

Open the Watermark Tool