How-To Guides 5 min readApril 5, 2026
How to Add a Watermark to PDF — Text and Image Watermarks
Protect your PDF documents by adding text or image watermarks. Customize position, opacity, color, and rotation.
Why Add Watermarks to PDFs
Watermarks serve multiple purposes:
- Copyright protection — Mark documents as your property
- Confidentiality — Label documents as "CONFIDENTIAL" or "DRAFT"
- Branding — Add your company name or logo
- Prevent unauthorized use — Discourage copying and redistribution
Types of PDF Watermarks
Text Watermarks
Add text like "CONFIDENTIAL", "DRAFT", "SAMPLE", or your company name. Customize:
- Font size (20-100px)
- Color (gray, red, blue, or custom)
- Opacity (10-90%)
- Rotation angle (-90 to +90 degrees)
- Position (center, corners, custom)
Image Watermarks
Overlay a logo or image on each page. Useful for branding documents with your company logo.
Best Practices
- Use 30-50% opacity — Visible enough to serve its purpose but does not obstruct reading
- Center placement with rotation — The classic diagonal watermark is hard to crop out
- Gray color for formal documents — Less distracting than red or blue
- Consistent positioning — Apply to all pages for uniform protection
Step-by-Step
- Upload your PDF
- Type your watermark text
- Adjust font size, color, and opacity
- Set the position and rotation angle
- Preview the result on the first page
- Click "Add Watermark" to apply to all pages
- Download your watermarked PDF
pdf watermarkdocument protectionpdf security
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