Add Watermark to PDF
Add a text or image watermark to a PDF.
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How do you add a watermark to a PDF?
A watermark is text or an image — DRAFT, CONFIDENTIAL, your company logo — placed across the pages of a document to mark its status or origin. Docuboxer stamps watermarks onto PDFs entirely in your browser: load the file, type the watermark text or upload a logo image, adjust its opacity, size, and position, and apply it to every page or only a specific range. The watermark is embedded as a graphic element inside each page, so it travels with the document wherever it goes. Because the whole process runs locally with WebAssembly, the PDF you are marking — often precisely the kind of confidential or pre-release document you least want on someone else's server — never leaves your device. The tool is free, requires no signup, adds no watermark of its own, and works offline once the page has loaded.
How to use Add Watermark to PDF
- Upload the PDF you want to watermark from your device.
- Type the watermark text or upload a logo image, then adjust its opacity, size, and position over the page.
- Apply the watermark to all pages or a specific range and download the visually protected PDF.
Common use cases
Mark drafts and internal documents
Stamp DRAFT, CONFIDENTIAL, or INTERNAL USE across documents you share with third parties to deter unauthorized use or redistribution.
Brand proposals and catalogs
Place your company logo or brand name subtly on every page of proposals, quotes, and PDF catalogs sent to prospects.
Protect portfolios and creative work
Watermark design mockups, photography decks, and manuscripts before sending them for review, so ownership stays visible.
Label document versions and status
Mark files as APPROVED, SAMPLE, or NOT FOR DISTRIBUTION so recipients always know what they are looking at.
Watermark sensitive files privately
The documents most worth watermarking are usually confidential — here they are processed in your browser and never uploaded anywhere.
Frequently asked questions
How do I add a watermark to a PDF for free?
Load the PDF, enter your text or upload a logo, set opacity, size, and position, and download the result. Free, no signup, and no watermark added by the tool itself.
Can I use an image or logo instead of text?
Yes. Upload any PNG, JPG, or SVG image to use as the watermark. The tool positions it and adjusts its transparency according to the parameters you set.
Can I watermark only certain pages?
Yes. Apply the watermark to every page or restrict it to a specific page range — useful when a cover page or annexes should stay clean.
Can the watermark be removed later?
The watermark is embedded as a graphic element inside each page. A determined user with an advanced PDF editor could attempt to strip it, but it effectively deters unauthorized use in most real-world cases.
Is it safe to watermark confidential PDFs online?
With Docuboxer, yes. The watermarking runs locally in your browser via WebAssembly — neither the document nor the logo is ever transmitted to a server.
Can I control how visible the watermark is?
Yes. You control opacity, size, and position, so the watermark can be a faint diagonal background or a prominent stamp, whichever the document calls for.
Does it work offline?
Yes. Once the page has loaded, you can disconnect and keep watermarking files — everything happens on your device.