Protect your documentsPDF Watermarker
Add custom text or image watermarks to any PDF. Control opacity, angle, size and position. Runs entirely in your browser.
Drop your PDF here
or click to browse. Your PDF never leaves your browser.
PDF · UP TO 100 MB · 100% PRIVATE
What is a PDF watermark tool?
A PDF watermark tool stamps a visible mark — text such as "CONFIDENTIAL" or "DRAFT", or an image such as a company logo — across every page of a PDF. The watermark is embedded directly into the page content, making it visible to all readers and deterring unauthorised distribution or copying.
Watermarks serve two main purposes: branding and document control. Branded proposals sent to clients carry your logo on every page. Internal drafts marked "DRAFT" or "NOT FOR DISTRIBUTION" signal their status clearly. EditPDF AI applies watermarks entirely in your browser, so the document never needs to be uploaded.
Practical examples
Common ways people use this tool in real documents and day-to-day workflows.
Add a logo or "SAMPLE" watermark to proof copies of artwork, photography, or design work shared with clients before final payment.
Mark documents as "CONFIDENTIAL", "PRIVILEGED", or "DRAFT" before circulating them internally or to external parties.
Watermark advance reader copies of books, reports, or white papers before distributing to reviewers.
Brand every page of a proposal or report with a company logo so recipients always know the document's origin.
How it works
Upload your PDF
Drop your PDF onto the page or click to select it. All processing happens in your browser.
Configure the watermark
Type your watermark text, choose the font size, colour, opacity, and rotation. Or upload an image watermark (logo, stamp).
Apply and download
Click Add Watermark. The watermark is applied to every page and the PDF downloads instantly.