Processed on your device
Files are not uploaded to CookPDF servers
The main operation runs in the browser on your device.
Session can be restored
The browser can save a cache and local draft to continue your latest work.
Check before using
Review the resulting file, especially for documents that need to be signed, printed, or sent officially.
How to add a watermark
Follow three steps and check the result before downloading.
Open a document
Choose the PDF you want to mark with a status or identifier.
Design the watermark
Enter text or choose an image, then adjust its position and transparency.
Select pages and export
Preview the applied range, then download the watermarked PDF.
Highlights
Useful capabilities for the right task on PDF documents.
Text or image watermark
Use text like “DRAFT” or add your own logo.
Customize the appearance
Adjust position, size, rotation and transparency.
Apply by range
Select the pages you want to mark instead of changing the entire document.
Processed on your device
Files are not uploaded to CookPDF servers for the main operation.
Use cases
Common situations well suited to this tool.
Mark drafts
Let recipients know the document is not the final version.
Add brand identity
Place a logo or organization name on shared documents.
Classify documents
Add internal labels like “Reference” or “Not for release”.
Ready to add a watermark?
Choose your PDF files to get started and check the result right in your browser.
Add a watermark to your PDF online
Add a text or image watermark and adjust its position, size and transparency before applying it to the PDF pages.
When is this tool useful?
- Mark drafts: Let recipients know the document is not the final version.
- Add brand identity: Place a logo or organization name on shared documents.
- Classify documents: Add internal labels like “Reference” or “Not for release”.
Recommended workflow
Open the file, set up the task on the preview, review each affected page, and only then download. Keep the original so you can compare or start over when needed.
Limitations to know
A watermark helps convey status or identity but cannot prevent every attempt to copy, edit or recapture the content.
Data and sessions
The main operation is performed on your device and files are not uploaded to CookPDF servers. Your browser may store a cache or a local draft to restore your session; you can clear the session in the interface or clear website data in your browser settings.
Frequently asked questions
Answers about capabilities, limits, and how files are handled.
Can I use both text and an image?
Can I adjust the transparency?
Does a watermark prevent others from copying?
Can I choose which pages to apply it to?
Ready to add a watermark?
Choose your PDF files to get started and check the result right in your browser.