Add a Watermark to Your PDF
Free & private · no signup · no watermarks · files deleted in 1 hour
Need to brand, protect, or mark the status of a PDF document? Our Add Watermark tool lets you overlay custom text across every page of your PDF. Set the watermark text — "Confidential", "Draft", "Sample", your company name, or any phrase — and control the font size, colour, opacity, rotation angle, and position. Subtle, semi-transparent watermarks work for general branding; bold, high-opacity marks make the status immediately clear for draft documents.
Watermarks are embedded permanently into the PDF output, making them difficult to remove without the original source file. This is widely used for protecting proofs sent to clients, marking internal review copies as "Draft", applying copyright notices to design deliverables, and adding confidentiality labels to sensitive reports before distribution.
Key features: Custom text watermark • Control opacity, size, colour, and rotation • Multiple position options • Permanent, hard-to-remove embedding • Supports PDFs up to 100MB • No registration required
Upload Files
Drag & drop or select files
Configure
Set your preferences
Download
Get your file instantly
Step 1: Upload Your Files
Supports: PDF • Max file size: 100MB • Unlimited files
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How to Add Watermark Online — Step by Step
Complete in under 2 minutes. No software, no registration, 100% free.
Upload your PDF
Drag or click to upload the PDF you want to watermark.
Design your watermark
Enter the watermark text (e.g. "Confidential", "Draft"), set font size, colour, opacity (10-100%), and position.
Click Add Watermark
Your watermark is applied to every page and permanently embedded in the PDF output.
Download your watermarked PDF
Save the protected document. The watermark is hard to remove without the original source file.
Frequently Asked Questions About Add Watermark
Everything you need to know about our Add Watermark tool
Yes, completely free. Our Add Watermark tool has no hidden costs, no watermarks, and no registration requirement. You can process as many files as you need, each up to 100MB, at no charge. We believe professional PDF tools should be accessible to everyone — students, freelancers, and businesses alike.
Your files are fully protected. All uploads and downloads use 256-bit SSL/TLS encryption during transfer. Processing happens on our isolated Hetzner server infrastructure in Germany — your file is never shared, analysed for commercial purposes, or stored longer than necessary. Every uploaded and processed file is automatically and permanently deleted within one hour of processing.
Supported file types: This tool accepts PDF files up to 100MB each. For files larger than 100MB, use our Compress PDF tool first.
Portable Document Format
Yes — works on any device. The interface is fully responsive and tested on desktop, tablet, and mobile. Touch-friendly upload areas, drag-and-drop support on desktop, and mobile-optimised buttons mean you get the same experience whether you are on a MacBook, an iPad, or an Android phone. No app download is ever required — open your browser and go.
Yes — opacity is fully adjustable from 10% to 100%. A 15-20% opacity creates a barely visible ghost watermark that protects content without obscuring text. 40-60% is typical for "Confidential" or "Draft" labels that must be noticed. 100% creates a fully solid, opaque watermark. Combine low opacity with a 45° diagonal rotation for the classic diagonal watermark appearance seen on legal and financial documents.
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Every upload and download uses HTTPS/TLS.
Files are wiped from our servers automatically.
Your file comes back exactly as expected.
No account and no email required, ever.
Ready to Add Watermark?
Free, private, and done in seconds — no account, no watermark, no catch.
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