A watermark quietly does a lot of work: it marks a document as a DRAFT so no one treats it as final, flags something CONFIDENTIAL, or stamps your name across a file so it's clear who it belongs to. It's a small touch that prevents real mix-ups.
You can add a watermark to a PDF for free, in your browser, without uploading the document. Here's how.
Add a watermark in seconds
Use the free Add Watermark to PDF tool. Type your watermark text, and it stamps it across every page — all locally, so the file never leaves your device.
Watermark PDFStamp text over every page of a PDF.What to write on it
- DRAFT — so a work-in-progress isn't mistaken for the final version.
- CONFIDENTIAL or INTERNAL — to signal how a document should be handled.
- Your name or company — to mark ownership of a proposal, portfolio or sample.
- A date or version — so the right revision is obvious at a glance.
- SAMPLE / SPECIMEN — for previews you don't want reused as the real thing.
Watermarking tips
- Keep it readable but not overpowering — the watermark should be clear without hiding the content underneath.
- A diagonal stamp reads as a watermark and is harder to crop out than a corner note.
- Remember it's a visual deterrent, not security. A watermark discourages misuse but doesn't lock or protect the file.
- Watermark a copy, keeping a clean original for your records.
Need real protection rather than a label? A watermark won't stop copying. For sensitive text, encrypt it separately with the Text Encryptor, or share access through a controlled channel.
Pairs well with other PDF tools
Watermarking often comes at the end of a small workflow. Combine files with Merge PDF, trim pages with Delete Pages, or turn photos into a PDF first with Image to PDF — then stamp the finished document.