Watermark PDF
Add watermark to pdf pages.
Latin text supported. Text is added to the selected pages; blank selects all.
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What this tool does
Overlay a text label to identify draft, review or ownership status. A watermark is not encryption or access protection.
How to use it
- If supplying content as a file, select one source file (application/pdf).
- Set watermark text (initial value: CONFIDENTIAL).
- Set font size (points) (initial value: 36).
- Set text color (initial value: #333333).
- Set opacity (0.1–1) (initial value: 0.35).
- Set text angle to one of: 0, 45, 90.
- Set pages or page order (e.g. 3,1,2 or 1-3).
- Choose Process, inspect the result, then use the download control. A reported error means no successful output was produced.
Limits and result checks
Latin text supported. Text is added to the selected pages; blank selects all.
Common questions
Which watermark text settings affect watermark pdf?
Watermark text: supply the content you want processed. Latin text supported. Text is added to the selected pages; blank selects all.
Where can I read the data-handling details for Watermark PDF?
Inputs are processed in browser memory and are not uploaded by this plugin. Generated downloads remain on your device. The site privacy policy explains memory cleanup and hosting logs.