Add Watermark to PDF: Watermark PDF online free
Stamp a text watermark across your pages in seconds — all processing happens on your device, private and instant.
100% private. Your PDF never leaves your device. Watermarking happens entirely in your browser.
Drop a PDF here or browse
Mark your document, keep it local · PDF only
What is a PDF watermark tool?
A PDF watermark tool is a utility that lets you add watermark to PDF documents without installing software. Whether you want to mark a draft, brand a proposal, or protect PDF with watermark against unwanted reuse, an online watermark editor gets the job done in seconds. Our free PDF watermark tool runs entirely in your browser, which means your files never leave your device while you watermark PDF online.
How to watermark PDF online
Marking a document takes less than a minute. Open this online watermark editor, then drop your PDF onto the page or click to browse. Type your text, tune the opacity and rotation, and set a font size. Because everything happens locally, you can add text watermark to PDF as many times as you like with no account and no waiting in a queue. It is the fastest way to watermark PDF online with full privacy.
Why use a free PDF watermark tool
Most people search for a free PDF watermark tool because other services force you to upload sensitive files to a remote server. Our tool is different: it draws the marks on your hardware, so your data stays private and the result is ready immediately. It is a free PDF watermark tool with no hidden paywalls and no limit on how many documents you process. For anyone who wants to protect PDF with watermark without sacrificing control, this is the simplest option for everyday use.
Text versus image watermarks
You can add text watermark to PDF for labels like CONFIDENTIAL or DRAFT, which is perfect for internal reviews. If you need to add image watermark to PDF with a logo, our other utilities can help, but a text stamp is the quickest way to mark pages consistently. Tilt the text and lower the opacity so it sits behind the content without harming readability, then watermark PDF online in a single pass.
Tips for a clean watermark
To get the cleanest result, start with moderate opacity around 0.3 and a gentle rotation such as minus 30 degrees. You can watermark PDF online, open the downloaded file to check the look, and try again with different settings — all without leaving your browser. When you need an online watermark editor that is fast and private, these quick passes give you a protected, clearly marked PDF.
Frequently asked questions
How do I add a watermark to a PDF?
Open the Add Watermark tool, type your text, adjust the look, and download the marked PDF, all in your browser. It is free, runs client-side with no uploads, and keeps your document private.
Can I add a logo watermark to PDFs?
The Add Watermark tool currently supports text watermarks, not image or logo files yet. It is free, works in your browser, and keeps your file private with no uploads while you stamp text across the pages.
How do I create text watermarks?
Just enter your wording in the Add Watermark tool and it tiles the text across every page. The tool is free, runs client-side in your browser, and keeps your document private.
Can I apply watermarks to specific pages only?
The Add Watermark tool applies the text watermark to all pages at once; per-page selection is not supported yet. It is free, works in your browser, and keeps everything private with no uploads.
Does watermarking affect PDF quality?
No, the watermark is layered over your pages without degrading the original content. The Add Watermark tool is free, runs client-side in your browser, and keeps your file private.
Can I change watermark transparency?
Yes, you can adjust the opacity and rotation plus the font size in the Add Watermark tool. It is free, works in your browser, and keeps your document private with no uploads.
Is there a free PDF watermark tool?
Yes, the Add Watermark tool is completely free with no account or daily limits. It runs entirely in your browser, so you can watermark PDFs privately without uploading anything.