Free online PDF tool

Add a watermark to a PDF

A watermark marks a document as a draft, a copy, or confidential without touching the underlying content. This tool draws your chosen text diagonally across the middle of every page at a size scaled to the page.

The watermark is drawn semi-transparently so the text underneath stays readable. It is added as a real PDF drawing operation, which keeps the original page content selectable.

Open Add Watermark

Runs in your browser — your files are never uploaded.

How to Add Watermark

  1. Select the PDF you want to mark.
  2. Type the watermark text — "CONFIDENTIAL" and "DRAFT" are the usual choices.
  3. Press "Add watermark" to download the stamped document.

Frequently asked questions

Can the watermark be removed later?

By someone with a full PDF editor, yes. A watermark communicates status; it is not a security control. For genuine protection you need document encryption.

Can I use an image or logo instead of text?

Not currently. This tool draws text watermarks only.

Does it cover up my content?

It is drawn at low opacity across the middle of the page, so the text underneath stays readable. It is intentionally visible but not obstructive.

Is the watermark added to every page?

Yes, every page in the document gets the same watermark.

Related tools

Add Text Place a custom label such as APPROVED or DRAFT on the first page or every page of a PDF. Page Numbers Add page numbers to the footer of every PDF page with a custom format and start number. Metadata Editor Change the title, author, subject, and keywords stored inside a PDF.