Add a watermark

Vellum applies a text watermark across every page of a PDF document, with full control over position, size, opacity, diagonal or horizontal orientation, and color. Useful for marking a draft or a confidential exhibit before circulating it. The watermark is burned in inside your browser, with no upload of the document.

How do you add a text watermark across every page of a PDF?

Upload the PDF, type the watermark text (for example “CONFIDENTIAL” or “DRAFT”), then adjust position, size, opacity, angle and color. The watermark is applied to every page at once.

Can I adjust the opacity so the watermark doesn’t interfere with reading?

Yes, opacity is adjustable, as is the diagonal or horizontal orientation of the text, so you can balance the visibility of the mark against the readability of the content.

Is the PDF uploaded to a server to receive the watermark, and is it free?

No, the watermark is burned in directly inside your browser, with no upload of the document, and the tool is free.

Vellum — free PDF tools whose processing stays on your device.