Add Watermark to PDF Online Free
Add text or image watermarks to PDF files online for free. Customise position, opacity, font and rotation. Protect your documents in seconds.
About Watermark PDF
Watermarking PDFs protects your intellectual property, marks documents as confidential, or brands your work before sharing. Our free watermark tool lets you add custom text watermarks — CONFIDENTIAL, DRAFT, or your company name — choosing font size, colour, opacity, rotation angle, and position. You can apply the watermark to all pages or specific pages only. Image watermarks such as logos are also supported. The result is a professionally watermarked PDF that deters unauthorised copying and clearly identifies document ownership.
Frequently Asked Questions
Can I add my logo as a watermark?
Yes — upload a PNG or JPG image as your watermark and position it anywhere on the page.
Can I control the transparency?
Yes. Use the opacity slider to set any transparency level.
Will the watermark appear on all pages?
By default yes, but you can choose specific pages or page ranges.
Can the watermark be removed?
Our watermark is embedded into the PDF content, making it difficult to remove without specialised tools.
What text styles are available?
Font size, colour, bold or italic, and rotation angle are all customisable.