Watermark PDF
Stamp a text watermark — like DRAFT or CONFIDENTIAL — across every page of your PDF. The text overlay is added right in your browser; nothing is uploaded.
Processed in your browser — nothing uploaded
Drag & drop your PDF here
PDF file only · up to 50 MB
Choose PDFHow it works
- 1
Upload your PDF
Drag and drop a PDF (up to 50 MB) or click to browse. The watermark is applied on your device.
- 2
Design your watermark
Type the watermark text, then tune opacity, size, angle, position, and shade with the controls.
- 3
Save the result
Click Add watermark to stamp every page, then download the new PDF. Your original file is never changed.
Frequently asked questions
- Are my PDFs uploaded to a server?
- No. The watermark is added entirely inside your browser. Your files never leave your device.
- Does a watermark protect my PDF from copying?
- No. This tool adds a visual text overlay on each page — it does not password-protect or encrypt the document, and the overlay can be removed by anyone with a PDF editor.
- Can I watermark only some pages?
- The tool stamps every page of the document. To watermark selected pages, split your PDF first, watermark the part you want, and merge it back.
- Which font is used for the watermark?
- The watermark is drawn in Helvetica, a standard PDF font, so it renders correctly in every PDF reader.
- Is there a file size limit?
- Each PDF can be up to 50 MB. Processing happens on your device, so very large documents depend on your device's memory.
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