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How we handle your dataWatermark PDF
Add a text watermark to every PDF page. Choose diagonal, center or footer placement. Use Add Logo to PDF for PNG/JPG marks. A watermark does not remove underlying content.
Synthetic example — review the operation settings before running.
Your documents stay on this device. Tool downloads and usage statistics do not include file contents.
Local limits: Max single file: 60 MB
Files are processed in your browser. They are not uploaded to this site.
A practical guide
Watermark PDF: a worked example
- Choose a PDF and enter a text watermark.
- Set the position and opacity, keeping document text readable.
- Run the task, review the result and save it if needed.
Try this example
Use the six-page sample and enter DRAFT. Choose diagonal placement and low opacity. Check that all six pages are marked and the original text remains readable.
Before
- Report
After
- Report + DRAFT
What you get
Add a text watermark to every PDF page. Choose diagonal, center or footer placement. Use Add Logo to PDF for PNG/JPG marks. A watermark does not remove underlying content.
Limits and important details
Local limits: Max single file: 60 MB
Text is applied to every page in diagonal, center or footer position. Latin, Greek, Cyrillic, Hebrew, Arabic, Chinese, Japanese and Korean text is supported. This is a visible label, not redaction, encryption or copy protection; existing digital signatures may be invalidated. Use Add Logo to PDF for image marks or Add Letterhead to PDF for a PDF template.
Example
Use the six-page sample and enter DRAFT. Choose diagonal placement and low opacity. Check that all six pages are marked and the original text remains readable.