Add text watermarks to protect your PDFs
Add a text watermark to every page of your PDF. Watermarks are commonly used to mark documents as drafts, confidential, or sample copies. You type the watermark text (with quick presets like CONFIDENTIAL and DRAFT) and control its font size, color, opacity, and rotation angle. A live preview renders your actual page with the watermark over it so you can tune the look before downloading.
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Add text or image watermarks to protect your photos. Features position control, opacity adjustment, tiled patterns, and batch processing for copyright protection.
Add custom headers and footers with page numbers
Extract all text content from a PDF document
Draft contracts must go out stamped "CONFIDENTIAL – DRAFT" diagonally on every page.
Input
contract.pdf · text "CONFIDENTIAL – DRAFT" · 45° · 20% opacity
Output
contract.pdf with the stamp on all pages, text still readable
A semi-transparent diagonal overlay marks status on every page without obscuring the content and is hard to remove cleanly. It applies document-wide in one pass rather than page by page.
Add a text watermark to every page of your PDF. Watermarks are commonly used to mark documents as drafts, confidential, or sample copies. You type the watermark text (with quick presets like CONFIDENTIAL and DRAFT) and control its font size, color, opacity, and rotation angle. A live preview renders your actual page with the watermark over it so you can tune the look before downloading.
Stamp "DRAFT" across pages to prevent premature distribution of unfinished work.
Add "CONFIDENTIAL" or "INTERNAL USE ONLY" to sensitive business documents.
Stamp a company name or "SAMPLE" across reports, proposals, or whitepapers before sending them to clients.
The watermark is drawn with pdf-lib using an embedded Helvetica-Bold font. For each page the text is placed centered on the page, then rotated and given the opacity and color you chose, and stamped on top of the existing content. The same watermark is applied to all pages of the document. Customization covers the text itself, font size, hex color, opacity, and rotation; image watermarks are not supported, and there is no per-page-range targeting or behind-the-content layering in the current version. The on-page preview lets you flip through pages to see roughly how the watermark will sit before you commit.
The watermark is permanently embedded in the output file. Keep your original unwatermarked PDF if you might need a clean version later.
The watermark is drawn on top of the page content, so use a low opacity to keep the underlying text readable. The live preview shows exactly how it will look.
Not in this tool. It applies a text watermark only. The text is stamped centered on every page with your chosen size, color, opacity, and rotation.
PDF parsing and editing happen in your browser. Documents, and everything inside them, are never uploaded or stored remotely.