Add Watermark to PDF
AI PoweredAdd Text Watermark to PDF Free Online – Custom, Instant, No Signup.
Protect your PDF with custom text watermarks. Adjust opacity, size, color and position. No signup, 100% free.
Upload Your Image
Drag & drop your image here or click to browse
Supports PDF · Max 50MB
Secure Processing
Runs entirely in your browser — never uploaded
AI-Powered
Smart processing for the best output quality
100% Private
Image stays on your device, auto-cleared after
Add Watermark to PDF – Protect Your Documents Free Online
QuickToolify's free PDF watermark tool adds custom text watermarks to all pages of your PDF – entirely in your browser using pdf-lib. No server upload, no signup, no watermarks from us on your output.
Why Add Watermarks to PDFs?
Mark PDFs with your name or company to prevent unauthorized distribution.
Add "DRAFT" or "CONFIDENTIAL" watermarks to work-in-progress documents.
Add company name or logo watermark to all business documents.
Mark sensitive documents as "CONFIDENTIAL" before sharing.
Add "SAMPLE" watermark to preview documents sent to clients.
Mark PDFs with version numbers like "v1.0" or "FINAL" for clarity.
How to Add Watermark to PDF in 3 Steps
Stamp PDF with custom watermark instantlyUpload PDF
Upload your PDF file up to 50MB.
Add Watermark
Custom watermark applied to all pages in your browser – no server upload.
Download
Download your watermarked PDF free. No signup required.
Why Use QuickToolify PDF Watermark Tool?
Fast results
See the benefits immediately with a clean, easy-to-use section.
Trusted experience
Built for free tools with privacy-first browser-based processing.
Optimized for all users
Designed for good performance, accessibility, and mobile screens.
Instant downloads
Get your work in seconds with no signup or waiting.
Frequently Asked Questions – PDF Watermark
Everything about adding watermarks to PDFs free
Your Privacy, Our Priority
We don't store any of your data or files. All files are instantly deleted after your use completes.