Watermark PDF
Stamp diagonal text on every page. Fully browser-based.
Other PDF Tools
Add Watermark to PDF Online — Free & Instant
Watermarking a PDF used to mean opening bulky software and fiddling with opacity settings. With CliqTools, you just upload your PDF, type your watermark text — 'CONFIDENTIAL', 'DRAFT', your company name, whatever you need — adjust the opacity, and download. The diagonal watermark is applied to every page instantly, right in your browser. It's great for protecting documents you share externally, marking proofs, or branding reports. No watermark is added to your output by us, and nothing is uploaded to any server.
Frequently Asked Questions
Can I choose where the watermark appears?
Currently, the watermark is placed diagonally across the center of each page, which gives the best coverage and visibility.
Can I customize the watermark text?
Yes — you can type any text you want, such as CONFIDENTIAL, DRAFT, DO NOT COPY, or your company name.
Can I adjust how visible the watermark is?
Yes. Use the opacity slider to control how prominent or subtle the watermark appears.
Will the watermark be on all pages?
Yes, the watermark is applied to every page of the PDF automatically.
Have questions or need help? We're happy to assist.
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