Add a watermark to a PDF
Stamp text such as DRAFT, or your logo, across your PDF pages.
Preparing your workspace
Loading the controls for this tool. Your files stay on this device.
Network activity: Starting…
How it works
- 1
Choose a PDF. A preview of its first page appears on this device.
- 2
Type your text or choose an image, then set its position, size and transparency.
- 3
Add the watermark and save the new PDF.
Files and limits
- Accepts
- Files
- One file
- Size
- 200 MB per file (50 MB per file on phones, tablets and low-memory computers)
Good to know
- Text watermarks use Latin letters, numbers and common symbols. Other scripts are not supported yet.
- A watermark below the content can be hidden by images and filled areas.
- Anyone with a PDF editor can remove a watermark. It labels a document; it does not lock it.
Why it's private
Processed in your browser
The tool runs on your device. There is no upload step and no server that receives your files.
Works offline
Wait for Offline ready before disconnecting. OCR and Office conversion also need their engines saved on this device.
No ads or trackers
Tool pages load no ads, no analytics scripts and no third-party code.
Questions
Can I add my logo?
Yes. Choose Image, then a JPG or PNG. A PNG with a transparent background stays transparent.
Can I watermark only some pages?
Yes. Choose "Selected pages" and type their numbers, for example 1, 4-6.
Can people remove the watermark?
Someone with a PDF editor can. A watermark marks a document as a draft or as yours; it does not stop copying. To stop people opening the file, protect it with a password.
Does it work with password-protected PDFs?
Yes. Enter the file's password when asked; it is used on this device only. The new file is not password-protected.
Are my files uploaded anywhere?
No. Your browser does the work on this device, and the tool keeps working offline once the page has loaded. Nothing is sent to a server.