Add Watermark to PDF
Add custom watermark text to every page of your PDF.
Add Watermark to PDF Online
Add a text watermark to every page of a PDF directly in your browser. A watermark can help identify drafts, mark documents as confidential, add a company or project name, or make the intended status of a document clear before it is shared.
How to add a watermark to a PDF
- Select the PDF you want to edit.
- Enter the watermark text.
- Choose the text size and opacity.
- Click Add Watermark.
- Download the newly created PDF.
When is a PDF watermark useful?
Watermarks are useful for internal drafts, review copies, sample documents, educational material and files that need a visible ownership or status label. A diagonal watermark remains noticeable without requiring you to edit every page manually.
Keep the original document
The tool creates a new watermarked copy, so you can keep the original PDF unchanged on your device. Review the downloaded file before sending it to other people, especially when the document contains important formatting.
Privacy
The watermark operation is designed to run in your browser, avoiding the need to intentionally upload the document to eko24.net for processing.
Frequently asked questions
Can I change watermark opacity?
Yes. Adjust the opacity to make the watermark more subtle or more visible.
Is the watermark added to every page?
Yes. The entered text is applied across the PDF pages processed by the tool.
Does it replace my original PDF?
No. You download a separate watermarked copy.