ONLINE PDF TOOL
Add a Watermark to PDF Online
Place custom text across PDF pages with selectable size, color, and opacity.
How to watermark a PDF
- Select or drop one PDF file.
- Enter watermark text and choose its appearance.
- Process and download the watermarked PDF.
When should you add a watermark?
Watermarks can label drafts, confidential copies, samples, or ownership information directly on document pages.
Keep important content readable
Preview the result and confirm that watermark size and opacity do not obscure signatures, form values, or essential text.
For more information, read our Privacy Policy
Frequently asked questions
Can I change watermark opacity?
Yes. Choose a supported opacity that keeps both the watermark and document content readable.
Can I choose the watermark text?
Yes. Enter the text that should appear on the processed pages.
Does a watermark prove legal ownership?
A visible watermark can communicate ownership or status, but it is not automatically legal proof or a digital signature.