How to Add a Watermark to a PDF for Free (2026 Guide)

📅 March 29, 2026 ⏱ 5 min read 📂 How-To

Watermarking a PDF protects your work, marks documents as confidential, or brands your deliverables. Here's how to add both text and image watermarks to any PDF for free.

Types of Watermarks

Text watermark — "CONFIDENTIAL", "DRAFT", "SAMPLE", or your company name diagonally across each page
Image watermark — Your logo or signature placed on every page
Full-page watermark — A large semi-transparent mark covering the entire page

How to Add a Text Watermark (Step-by-Step)

Go to quickdopdf.com/watermark.html
Upload your PDF file
Choose "Text Watermark"
Type your watermark text (e.g., "CONFIDENTIAL" or your company name)
Set font size, color, and opacity (30-50% opacity looks professional)
Choose position: center, diagonal, corner
Click "Add Watermark" and download

How to Add an Image/Logo Watermark

Go to quickdopdf.com/watermark.html
Upload your PDF file
Choose "Image Watermark"
Upload your logo (PNG with transparent background works best)
Set size and opacity
Position it in a corner or center
Download the watermarked PDF

💡 Best Practices:

Use 30-40% opacity for text — visible but not blocking content
PNG logos with transparent backgrounds look cleanest
Diagonal text watermarks are hardest to remove or crop out
"DRAFT" and "SAMPLE" watermarks are standard for client review documents

Common Watermark Use Cases

Freelancers: Watermark portfolio PDFs sent to potential clients with your name/website
Businesses: Mark internal reports "CONFIDENTIAL" before sharing
Authors/Creators: Add "DRAFT" to manuscripts sent for review
Photographers: Watermark PDF photo proofs with your studio name
Legal: Mark documents "PRIVILEGED AND CONFIDENTIAL"

Can Someone Remove a Watermark?

Text watermarks added over a PDF's content layer can potentially be edited out by someone with advanced PDF editing software. However, watermarks on scanned PDFs (image-based) are much harder to remove since the watermark is baked into the image pixels. For maximum protection, combine watermarking with password protection.

Add Watermark to PDF — Free

Text or image watermarks. Custom opacity. No sign-up required.

Watermark PDF Now →