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Overlay text like DRAFT or CONFIDENTIAL across every page.
Drop your files here
or browse, or paste from clipboard
PDF files
Processed in your browser - never uploaded
A watermark is a line of text - think DRAFT, CONFIDENTIAL, or your company name - laid over the top of every page in a PDF. It signals the status of a document, discourages unauthorised copying, and makes it obvious at a glance which version someone is looking at. Sapphire Broking's free Watermark PDF tool lets you stamp that text across a whole document in seconds, with full control over how bold or subtle it appears.
What sets this tool apart is where the work happens: entirely inside your own browser. Powered by WebAssembly, it processes your PDF on your device and never uploads it to a server, so a contract, financial statement, or private draft never leaves your computer. There are no accounts to create and no files sitting in someone else's cloud afterwards.
You choose the exact wording, then fine-tune the opacity, rotation angle, and colour until it looks right. If you want the text repeated across the entire page rather than sitting in the centre, a tiled mode fills the background with your watermark for extra coverage.
Add your PDF
Drag your PDF onto the tool or click to select it from your device. The file is opened locally in your browser and is not uploaded anywhere.
Type your watermark text
Enter the text you want to overlay, such as DRAFT, CONFIDENTIAL, or your own wording. It will be applied to every page in the document.
Set the appearance
Adjust the opacity so the text is bold or barely-there, set the rotation angle, and pick a colour. Switch on tiled mode if you want the text repeated across the whole page instead of a single central stamp.
Apply the watermark
Run the tool to stamp your text across all pages. Everything is rendered on your device, so it takes only a moment.
Download your file
Save the watermarked PDF straight to your device. The original file stays untouched, so you always keep a clean copy.
Your PDF is processed entirely in your browser using WebAssembly and is never uploaded to a server. That makes it safe for contracts, statements, and anything else you would rather not send to the cloud.
Dial the opacity up for a bold stamp or down for a faint background mark, rotate the text to any angle, and choose a colour that suits your document.
The watermark is applied to all pages automatically, so you do not have to repeat the process page by page, and tiled mode can blanket each page for maximum visibility.
There is no sign-up, no watermark of ours added, and no waiting on an upload. Add your file, set your options, and download in seconds.
Most online PDF tools upload your document to a server to process it. This one does not. Every operation runs inside your own browser using WebAssembly, so your files are read, processed, and saved locally - they are never transmitted, stored, or seen by Sapphire Broking or anyone else. That makes it safe to use with financial statements, contracts, and identity documents.
Yes. Your chosen text is applied to all pages of the PDF in a single step, so you do not need to watermark pages one at a time.
No. The entire process runs inside your browser using WebAssembly, and your PDF never leaves your device or touches a server.
Yes. Lower the opacity for a faint, unobtrusive mark, or raise it for a strong, clearly visible stamp - you control exactly how prominent it is.
Tiled mode repeats your watermark text across the whole page in a grid rather than placing a single stamp in the centre, giving fuller coverage of every page.
This tool watermarks with text only. You can type any wording you like and adjust its colour, angle, and opacity, but it does not overlay image or logo files.
Yes. You can rotate the watermark to any angle - a diagonal stamp is common - and choose the colour that best suits your document.
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