Does the watermark appear on every page?

Yes — the watermark is applied to all pages of the PDF.

Can I adjust the opacity?

Yes — set any opacity level from subtle to prominent.

Are my files uploaded to a server?

No — all processing happens in your browser.

Free PDF Watermark Tool — Add Watermark to PDF Online

Add professional text watermarks to every page of any PDF with our free PDF Watermark tool. Enter your watermark text (e.g., CONFIDENTIAL, DRAFT, your company name), set the font size, opacity, angle, and color, then download the watermarked PDF instantly. Perfect for protecting sensitive documents, marking drafts, and branding PDFs with your company name before sharing.

✦ FreeNo sign-upBrowser-onlyNo data uploaded

Drop a PDF file here

Watermark Text

Opacity30%

Angle45°

Font Size48px

Color

CONFIDENTIAL

How to use the PDF Watermark

Open the tool — Visit this page in any browser. No account, download, or installation required. Works on desktop, tablet, and mobile.
Enter your content — Add professional text watermarks to every page of any PDF with our free PDF Watermark tool.
Get your result instantly — All processing happens in your browser. Copy, download, or share your result immediately. Your data never leaves your device.

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