Watermark Adder (Images & PDFs)
100% Free · Client-Side
Add text or image watermarks to your photos and PDF documents. Adjustable opacity, position, and tiling.
Drop base images or PDFs here or click to browse
Supports common image formats and PDFs
Max 50MB per file
What is the Watermark Adder?
The Watermark Adder is a free, client-side tool that lets you protect and brand your images and PDF documents by adding text or image watermarks. Choose from 9 position presets (including tiling), adjust opacity and size, and apply your watermark to multiple files at once; all without uploading anything to a server.
Why Add a Watermark?
Protect Your Work
Deter unauthorized use of your photography, artwork, or design work by stamping your brand or copyright on every image.
Brand Every Image
Add your logo or website name to images shared on social media so every share drives recognition back to you.
Flexible Styling
Control text color, font size, opacity, and exact position — or use tiling to cover the entire image.
Batch Processing
Apply the same watermark to dozens of images at once - perfect for watermarking a photo session or product catalog.
Common Use Cases
- Watermark photography portfolios before sharing with clients
- Add copyright text to stock photos or illustrations before selling
- Brand product images before listing on e-commerce marketplaces
- Add a "DRAFT" or "CONFIDENTIAL" stamp to document previews
- Watermark screenshots for tutorials and how-to guides
- Apply a logo watermark to all social media images for brand consistency
Watermark Position Options
Top Left
Top Center
Top Right
Center Left
Center
Center Right
Bottom Left
Bottom Center
Bottom Right
Plus a Tile (Repeat) option that covers the whole image — ideal for hard-to-remove protection.
Frequently Asked Questions
1. Can I use my own logo as a watermark?
Yes! Switch to the 'Image Watermark' tab, upload your logo (PNG with transparency works best), and position it anywhere on the image.
2. What opacity is best for watermarks?
For visible-but-unobtrusive branding, 30-50% opacity is recommended. For stronger protection or draft stamps, use 60-80%.
3. Can I watermark PDFs?
Yes. The tool fully supports PDF files. It applies the watermark to every page of the document and outputs the result as a downloadable PDF file.