Free Online Watermark PDF Tool

Add a visible text watermark to a PDF. Label a draft or review copy and check that the watermark does not obscure important content.

Temporary server processing No registration

PDF options

Supported inputs, outputs, and browsers

Supported input
PDF
Output
Watermarked PDF
Browser compatibility
Use a current version of Chrome, Edge, Firefox, or Safari with JavaScript, secure uploads, and downloads enabled. Upload time and server decoding support can limit very large or unusual files.

How to use Watermark PDF

  1. 1.Use short wording such as Draft, then inspect a dense page to make sure the mark remains readable without covering text.
  2. 2.Run the operation with the displayed controls, then open and review the result before sharing it.

Limitations

  • A visible watermark does not prevent copying, prove ownership, or cryptographically authenticate a document.

Privacy and processing

Temporary server processing

The input is sent over HTTPS to the Free E Tools server only for the requested operation. Uploaded and generated files are temporary processing files, not permanent storage. No registration is required; avoid highly sensitive material when an online server workflow is inappropriate.

Frequently asked questions

What should I know before using Watermark PDF?

A visible watermark does not prevent copying, prove ownership, or cryptographically authenticate a document.

Where is my input processed?

The input is sent over HTTPS to the Free E Tools server only for the requested operation. Uploaded and generated files are temporary processing files, not permanent storage. No registration is required; avoid highly sensitive material when an online server workflow is inappropriate.