Add a watermark to a PDF — free

Mark and brand your documents in seconds

PDFEzy's free Watermark PDF tool stamps a line of text across your document so its status is unmistakable. Mark a file as "Confidential" before you share it, flag an early version as "Draft", or add your company or project name to brand a report. The watermark sits behind or over the content on every page, giving the whole document a consistent, professional look.

You have full control over how the watermark looks. Set the text, then adjust its position on the page, its opacity so it stays subtle or stands out, its color, font size and rotation angle. The watermark is applied to all pages at once, and because everything happens in your browser, your file is never uploaded — no watermarks from us, no sign-ups and no limits.

Why watermark PDFs in your browser?

• Private by design: the watermark is applied locally and your file never leaves your computer or phone.
• Full control of the look: tune the position, opacity, color, size and rotation to suit the document.
• Every page covered: the watermark text is stamped consistently across all pages at once.

Want to add other markings too? Use Add Text to PDF for one-off labels, or Add Page Numbers to number a report.