Add Watermark Online
Add Watermark online with ContinuePDF — no installer, no plug-in, no desktop software to keep updated. The whole tool loads as a web page, so you can watermark your PDF straight from any computer or phone that has a browser. Because the work runs on your own machine instead of a remote server, you get desktop-class speed without the desktop-class download.
Start Add Watermark NowHow to Add Watermark Online
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Open the tool in your browser
Go to continuepdf.com and open Add Watermark. There is nothing to install — the page is the app.
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Add your PDF
Drag files onto the page or click to browse. Everything loads into the browser tab, not a server.
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Add Watermark and download
Run the tool and save watermarked PDF to your device. The result is generated locally and downloaded instantly.
What you can do with Add Watermark
Adding a watermark stamps text or an image — a status label like CONFIDENTIAL or DRAFT, or a logo — across your PDF pages to mark the document's status or ownership, without hiding the content.
Mark a draft
Stamp DRAFT or NOT FINAL across pages so an in-progress document is not mistaken for the final version.
Label confidential files
Add CONFIDENTIAL so readers immediately know how to handle the document.
Brand your documents
Place a company logo or name on each page of proposals and reports.
Protect shared work
Watermark portfolios or samples with your name so they cannot be passed off as someone else's.
Why an online Add Watermark tool beats desktop software
Traditional PDF programs like Acrobat or dedicated watermark utilities have to be downloaded, installed, licensed, and updated — and they only work on the one machine you installed them on. An online tool skips all of that: open a URL and you are working. That matters most on borrowed, locked-down, or brand-new computers where you can't install anything.
The usual trade-off with "online" tools is privacy, because most of them upload your document to a server to process it. ContinuePDF is different — the watermark operation happens inside your browser using JavaScript and WebAssembly, so your PDF never leaves your device even though the tool lives on the web. You get the convenience of online with the privacy of offline.
Why choose ContinuePDF
Nothing to install
Works the moment the page loads — no setup, no admin rights.
Any device
Add Watermark from a laptop, desktop, tablet, or phone with the same link.
Always up to date
You always run the latest version — there is no old build to patch.
Processed locally
Online convenience, but files stay in your browser, not on a server.
Pro tip
Keep watermarks semi-transparent and positioned so they do not sit over important text — a light diagonal stamp reads clearly without making the document hard to use. A subtle grey often looks more professional than a bold colour.
Frequently asked questions
Can I use my own logo as a watermark?
Yes. You can add an image watermark such as a logo, as well as custom text, and adjust its size, position, and transparency.
Will the watermark appear on every page?
You can apply it across all pages for consistent marking, which is the usual choice for status labels and branding.
Do I need to install anything to watermark a PDF online?
No. Add Watermark runs entirely as a web page. You open the link, add your PDF, and download watermarked PDF — there is no program to download, no extension to add, and no account to create.
Does an online tool mean my file is uploaded somewhere?
Not with ContinuePDF. Although the tool is delivered over the web, the actual processing runs inside your browser on your own device. Your document is never transmitted to or stored on our servers.
Is ContinuePDF free to use?
Yes. ContinuePDF and all of its tools, including Add Watermark, are free with no signup required. Because documents are processed in your browser rather than on our servers, we can offer the full feature set at no cost.
Other ways to Add Watermark
Prefer a different device, browser, or setup? Add Watermark works the same everywhere.
Ready to Add Watermark?
Start using our free watermark tool now — no signup required.
Open Add Watermark Tool