Watermark PDF
Place text or logo watermarks exactly where you need them. Accepts PDF up to 20 MB. Produces watermarked PDF. Processing happens locally in your browser.
Input: PDF up to 20 MB · Output: watermarked PDF
Quality boundary
Text and logo watermarks are visible deterrents, not access control and not secure redaction. FileClear-created marks use an independently identifiable layer so they can be safely removed later.
How this file is processed
The file stays on this device during processing. Review the result before consequential use.
Read the complete PDF and image watermark guide
Useful next actions
Add a readable PDF watermark without covering important content.
A useful watermark is visible enough to communicate ownership or document status while leaving the underlying text, signatures, and diagrams readable.
Choose placement for the document
Use a centered diagonal mark for drafts and confidential copies, a corner logo for brand ownership, or tiling when screenshots and cropped excerpts also need context. Apply it only to the required page range, and use background placement when foreground content would become difficult to read.
Review the finished pages
Check the lightest and darkest pages, small text, charts, signatures, and cropped pages before sharing. A watermark is a visible deterrent, not encryption or secure redaction. FileClear-created PDF marks remain independently identifiable so the Remove PDF Watermark tool can reverse them later.
Quick quality check
- Choose the required pages
- Check contrast on light and dark pages
- Review rotated or cropped pages
- Keep the original PDF
- Use password protection when access control matters