Add a watermark to a PDF online, free
Stamp a word like CONFIDENTIAL or DRAFT across every page.
How to use Watermark
- Choose the PDF you want to mark, or drop it on the box above. A scan works as well as a typed document, and no account is needed.
- Type the watermark text, such as CONFIDENTIAL, DRAFT, COPY or your company name.
- Set the size, opacity and colour, and pick Diagonal or Straight for the angle. A light colour at low opacity keeps the text underneath easy to read.
- Press Add watermark and download the marked PDF. The watermark goes on every page, and your file is deleted from the server right after.
Watermark: common questions
Is my file uploaded?
Only while it is being processed. Your file goes to ScalePDF’s server over an encrypted connection, is worked on in memory, and is deleted the moment the result comes back. Nothing is stored, logged or shared.
Is there a limit on how many PDFs I can watermark?
No. There is no daily or monthly limit and no account, and it stays free for life: use it as often as you like. Files up to 50 MB in all are processed on ScalePDF’s server; bigger ones are processed right on your device, which can take a little longer.