Wolf Watermark PDF

Add text watermarks to PDF pages online in seconds — no signup, no limits, completely free. Drop your PDF, type your watermark, adjust the font size, color, opacity, rotation, and position, then download. Unlike SmallPDF or iLovePDF, your files never leave your device. Everything runs in your browser using pdf-lib, an open-source PDF library. Safe for contracts, proposals, drafts, confidential reports, or any sensitive documents.

How do I add a watermark to a PDF online?

Drop or select your PDF file, type your watermark text, adjust the font size, color, opacity, rotation, and position, then click Apply Watermark & Download. The watermarked PDF downloads instantly. No account or signup required.

Is it safe to watermark PDFs online?

Yes. Unlike SmallPDF, iLovePDF, or Adobe Acrobat online, this tool never uploads your files to any server. The watermark is applied entirely in your browser using pdf-lib. Your documents never leave your device.

Can I watermark only certain pages?

Yes. You can apply the watermark to all pages, the first page only, or a custom page range like 1-3 or 2,4,6. Just select the option before applying.

Can I customize the watermark appearance?

Yes. You can adjust the watermark text, font size (20-100), color, opacity (10%-100%), rotation angle (-90° to 90°), and position (center, top-left, top-right, bottom-left, bottom-right).