Add Watermark
Stamp text like CONFIDENTIAL or DRAFT across every page — with a live preview. Nothing leaves your browser.
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Watermark a PDF Online — Free & Private
A visible watermark discourages misuse and makes a document's status obvious at a glance — DRAFT, CONFIDENTIAL, DO NOT COPY, SAMPLE. Type your text, pick a color, adjust the opacity, and see exactly how it will look on your first page before applying it to all of them.
The watermark is drawn into each page's content with pdf-lib, entirely in your browser, so it appears in every PDF viewer and survives printing. Your file is never uploaded.
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FAQ
Can the watermark be removed later?
It's drawn into the page content rather than added as a removable annotation, so casual viewers can't delete it. Determined editing tools can still alter any PDF, so treat it as a deterrent, not security.
Does it watermark every page?
Yes — the same watermark is applied to all pages, sized relative to each page so it looks consistent in mixed-size documents.
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