tool
Watermark PDF
Add a text watermark to every page of a PDF online. Set position, opacity, and font size. Free, browser-based.
Category: PDF Tools
Watermark PDF
Upload one PDF, add a text or image watermark, set position and style, then export directly in your browser.
Accepted: PDF. Watermark: PNG or JPG image. Same watermark on all pages. Browser-side only. Large PDFs may fail on phones or low-memory devices. Password-protected PDFs may fail. Not a full PDF editor.
How to use
Watermark PDF adds a repeating text watermark across every page of a PDF document directly in your browser. Use it to mark drafts, add confidentiality notices, or brand documents.
- Upload your PDF
Select the PDF you want to watermark. The tool processes the file locally — nothing is uploaded to a server.
- Enter watermark text
Type the text you want to appear on each page, such as DRAFT, CONFIDENTIAL, or your company name.
- Adjust appearance
Set the opacity (how transparent the watermark appears), the rotation angle, the font size, and the position on the page.
- Apply and download
Click Apply Watermark. The browser overlays the text on every page and generates a new PDF for download.
Tip: A diagonal watermark at 45° with 30–40% opacity is a common balance between visibility and document readability.