Add Watermark to PDF
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Watermark Settings
Protect your intellectual property and signal document status effortlessly. Our Add Watermark tool allows you to stamp every page of your PDF with custom text or logos, ensuring your files are always properly labeled.
What is PDF Watermarking?
Watermarking is the process of superimposing text or an image over a document's main content. Usually semi-transparent, it provides a visible claim of ownership (like "Copyright 2024") or status (like "DRAFT" or "CONFIDENTIAL") without obscuring the text underneath.
How it Works
Our tool layers your chosen text or image on top of the existing PDF pages. You control the opacity (transparency), rotation, and size, allowing the watermark to sit subtly in the background or boldly in the foreground.
How to Watermark a PDF
- Upload: Open the PDF file you wish to stamp.
- Design: Choose "Text" to type a message or "Image" to upload a logo.
- Customize: Adjust rotation (e.g., 45° diagonal), color, font size, and transparency.
- Apply: Click "Apply Watermark" to merge the stamp onto every page and download.
Key Features
- Text & Image Support: Use simple text words or full-color company logos.
- Full Control: Adjust positions, angles, and transparency perfectly.
- Batch Application: The watermark is automatically applied to every single page in the document.
- Client-Side: Processing happens on your device for maximum speed and security.
Specifications
- Input: PDF.
- Watermark Types: Text, JPEG, PNG.
- Output: Watermarked PDF.
Use Cases
- Business: Stamp "CONFIDENTIAL" on internal memos.
- Creative: Add your signature or logo to artwork and design proofs.
- Legal: Mark documents as "COPY" or "EXHIBIT A".
Secure Document Handling
Just like our other tools, the watermarking process runs entirely in your browser. Your documents—and your custom logo assets—are never uploaded to any server. They remain private on your computer.
Free vs Premium
Free Version: Add watermarks to documents of any length for free.
Premium Version: (Future) Save watermark templates for recurring use.
Frequently Asked Questions
Can the watermark be removed?
It becomes a permanent part of the page content. While advanced editors might be able to select and delete it, it cannot be simply "turned off" by a viewer.
Does it cover the text?
You can adjust the opacity. A lower opacity (e.g., 0.3) makes it see-through so the underlying text remains readable.
Can I watermark only specific pages?
Currently, the tool applies the stamp to all pages. Selective watermarking is coming in a future update.
Related Tools
Finished stamping? Protect PDF to lock the file with a password, Flatten PDF to make the watermark uneditable, or Compress PDF for easier emailing.
Quick Summary
PDFPlug Watermark Tool lets you brand and protect your PDFs with custom overlays instantly and securely.
Last updated: January 2026