💧 Add Watermark Text or Image • Opacity • Rotation

Protect your PDFs by adding custom watermarks – text or image, with adjustable placement and transparency.
or drag & drop a PDF file here
How to Add Watermark to PDF – Free & Private Guide

Our PDF Watermark Tool lets you protect your documents by adding text or image watermarks. Adjust opacity, rotation, and position. Everything happens locally in your browser – no file uploads, complete privacy.

🔒 100% Local

Your PDF stays on your device – no server uploads.

📝 Text or Image

Choose between custom text or uploaded image watermark.

🎨 Full Control

Opacity, rotation, scale, position – all adjustable.

📌 How to use this tool

  1. Upload your PDF – Click “Select PDF” or drag & drop.
  2. Choose watermark type – Text or Image.
  3. Adjust settings – Opacity, rotation, position, scale (for images).
  4. Click “Apply Watermark & Download” – The watermarked PDF will be generated.
ℹ️ Note: Watermarks are placed on top of existing content. For text watermarks, any font can be simulated; the tool uses Helvetica. Image watermarks are embedded as PNG/JPEG. Tiled option repeats the watermark across the page.

❓ Frequently Asked Questions

🔹 Is my PDF uploaded to a server?
No. All watermarking is done in your browser using PDF-Lib. Your files never leave your device.
🔹 Can I use my logo as a watermark?
Yes – upload any JPG, JPEG, or PNG image. Adjust scale and opacity for a professional look.
🔹 What does “Tiled” position do?
Tiled repeats the watermark across the entire page, creating a background pattern – ideal for “DRAFT” or “CONFIDENTIAL”.
🔹 Is there a file size limit?
PDFs up to 100 MB work well. Image watermarks should be under 5 MB for performance.
🔹 Does watermarking affect PDF quality?
No – the original content is preserved. The watermark is added as a separate layer on top.
🔹 Is this tool free?
Yes, completely free for personal and commercial use, no watermarks on output, no registration.
⚡ Powered by PDF-Lib • Client‑side watermarking • No tracking • Works offline after first load