Watermark PDF
Add a text watermark to PDF files online for free. Control the watermark text, size, opacity and angle before downloading.
Drop your file here
or choose a file from your device
The converter keeps text formatting, inline images, tables, headers/footers and standard page layout where the browser renderer supports them. Basic Word charts are reconstructed from cached chart data when possible.
Fast workflow
Choose a file, adjust the available options, process it and download the result directly to your device.
Privacy focused
The document tools on this page run in your browser. Files are not sent to our PDF processing server.
Checked output
Input validation, clearer errors and safer page-range handling help avoid silent or misleading results.
About Watermark PDF
Watermark PDF adds a custom text watermark across every page of a PDF. You can change the wording, font size, opacity and rotation angle to create labels such as DRAFT, CONFIDENTIAL or a simple ownership notice.
A subtle watermark can identify draft material, internal documents or branded copies while keeping the original page content readable. Very large or opaque watermarks can cover important text, so use the preview settings conservatively. The current tool creates text watermarks rather than image-logo watermarks.
Need more detail? Read our Watermark PDF guide.
How to use Watermark PDF
- Choose the PDF file.
- Enter watermark text and adjust size, opacity and angle.
- Add the watermark and download the new PDF.
Key features
- Custom watermark text
- Adjustable opacity and size
- Configurable rotation angle
- Apply watermark to every page
Frequently Asked Questions
Can I change watermark transparency?
Yes. Use the opacity control to make the watermark more subtle or more visible.
Can I add an image or logo watermark?
The current tool adds text watermarks. Image-logo watermarks are not included in this version.
Does the watermark apply to every PDF page?
Yes. The selected text watermark is added to each page in the document.