100% FreeIn-Browser Tool•No Sign-Up Needed
Watermark
Stamp text across pages
Drop your file here, or browse
Supports PDF files up to 50MB
100% Free ForeverNo Sign-Up or Credit CardNo Watermarks · 100% Private
How to add a watermark to a PDF
- 1Drop your PDF and type the watermark text.
- 2Choose a layout — diagonal, horizontal, or tiled — then adjust size, colour and transparency with a live preview.
- 3Apply and download the watermarked document.
Mark your work before you share it
A watermark says a document is yours before it goes anywhere else — a name, "Confidential", "Draft", or a repeating mark.
The live preview shows exactly how the stamp will sit before you commit, so placement and opacity take seconds to dial in.
Watermark without watermarks
flarePDF adds no brand stamp to your output. The only mark on your file is the one you place, and the whole job runs privately in your browser.
Frequently Asked Questions
Quick answers about watermarking PDFs online for free with flarePDF.
This tool places text stamps. To combine your own image content with a page, use the PDF Editor instead.
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Need to change more than that?
The full PDF Editor can rewrite text, add images, annotate, watermark, fill forms and reorder pages — all free and all in your browser.
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