Add Watermark to PDF
Add a text or image watermark to every page of your PDF.
Drag & drop your PDF here, or click to choose. Your file never leaves your browser โ nothing is uploaded.
Drag & drop a PNG or JPG logo, or click to choose. No image selected yet.
Add a watermark to a PDF without uploading it anywhere. Pick a text watermark โ like CONFIDENTIAL or DRAFT โ and set the font, size, color, opacity, rotation, and whether it tiles across the whole page or sits centered. Or upload a PNG or JPG logo and place it in the center or any of nine positions with adjustable size and transparency. Your file is processed entirely in your browser, so nothing is sent to a server. The watermark is baked permanently into the saved PDF, so it appears in every viewer. Free, private, with no signup and no page limits.
Frequently Asked Questions
How do I add a watermark to a PDF for free?
Open this page, drop in your PDF, choose a text or image watermark, adjust the settings, then click Apply watermark & download. It is completely free with no signup and no page or file limits.
Is my PDF uploaded to a server?
No. The entire process runs in your browser using JavaScript and the pdf-lib library. Your PDF and any logo image never leave your device, which makes this safe for confidential or sensitive documents.
Can I add an image or logo as a watermark instead of text?
Yes. Switch to image watermark mode and upload a PNG or JPG logo. You can set its opacity, size, and position (center or any of nine spots on the page). Other image formats are converted to PNG automatically before being placed.
Can I make the watermark repeat across the whole page?
Yes. In text mode, tick the Tile / repeat option and the watermark text is stamped in a diagonal grid covering every page, which is harder to crop out than a single mark.
Can I control the opacity, color, and angle of the watermark?
Yes. Text watermarks support a color picker, opacity from 0 to 100 percent, and rotation from -90 to 90 degrees (45 degrees gives the classic diagonal look). Image watermarks support opacity and size sliders.
Does the watermark stay in the PDF when I open it elsewhere?
Yes. The watermark is written permanently into the page content, so it shows up in Adobe Acrobat, browsers, print, and any other PDF viewer โ it is not just a screen preview.
Will the watermark be added to every page?
Yes. The watermark is applied to all pages in the document in a single click, whether it has one page or hundreds.