PDFJar LogoPDFJar

Watermark PDF

Free watermark PDF tool to add watermarks to PDF documents. Add text or image watermarks to PDF files securely in your browser.

Drop PDF file here

or click to browse from your device

0 / 1 file
•Max 100MB per file

Other Useful Tools

Annotate PDF

Draw, highlight, and add annotations to PDF documents

Password Protect PDF

Secure your PDF documents with encryption

Flatten PDF

Remove form fields and interactive elements from PDFs

Edit PDF Metadata

Edit PDF metadata including title, author, and keywords

How to Add Watermark to PDF Documents

Use our free watermark PDF tool to add watermarks to PDF documents. Add text or image watermarks to PDF files with customizable options.

  1. 1

    Select Your PDF Document

    Select your PDF file or drag and drop it into the file selection area. Our watermark PDF tool supports documents up to 100MB. All processing happens in your browser - your file never leaves your device.

  2. 2

    Configure Your Watermark

    Choose between text or image watermark. For text watermarks, enter your watermark text and customize font size, color, rotation, and opacity. For image watermarks, select an image file and adjust size, position, rotation, and opacity. Preview your watermark in real-time as you make changes.

  3. 3

    Position and Customize Watermark

    Set the watermark position (center, top-left, top-right, bottom-left, bottom-right, or custom). Adjust rotation angle, opacity level, and for text watermarks, choose font size and color. The watermark PDF tool provides a live preview so you can see exactly how your watermarked PDF document will look.

  4. 4

    Download Watermarked PDF

    Download your PDF document with the watermark applied. The free watermark PDF tool processes everything in your browser - your documents never leave your device, ensuring maximum privacy and security when you add watermarks to PDF files.

100% Private PDF Watermarking: All watermark processing happens locally in your browser. Your documents never leave your device - no server uploads, no data collection. Add watermarks to PDF documents with complete privacy and security.