Watermark PDF Online – Add Text or Image Watermarks to PDF Files

The Watermark PDF tool allows users to add visible text or image watermarks to PDF documents directly from the browser. Watermarks are commonly used to label documents as confidential, draft, sample, approved, paid, private, or copyrighted. They can also be used to add a company name, brand logo, website URL, or ownership notice to PDF pages.

PDF files are widely used for reports, contracts, invoices, eBooks, certificates, business files, presentations, forms, and educational materials. Adding a watermark helps identify the document status, discourage unauthorized reuse, and make shared files more professional.

How to Add a Watermark to PDF

1. Upload your PDF file using the upload button or drag and drop area.
2. Select whether you want a text watermark or an image watermark.
3. Enter watermark text or upload your logo/image.
4. Choose opacity, rotation, position, and watermark mode.
5. Enter page ranges if you only want to watermark selected pages.
6. Click “Add Watermark” and download the final PDF file.

Main Features

• Add text watermarks such as CONFIDENTIAL, DRAFT, or SAMPLE.
• Add image watermarks such as logos, stamps, or brand marks.
• Choose watermark opacity for a light or strong appearance.
• Rotate the watermark for professional diagonal placement.
• Apply watermark to all pages or selected page ranges.
• Use a single watermark or repeated tiled watermark.
• Works locally in the browser for improved privacy.
• No software installation required.

Why Use a PDF Watermark?

A watermark can help protect your content, mark document status, and add branding to shared PDF files. Businesses often use watermarks for contracts, invoices, quotes, and internal documents. Content creators use watermarks to protect samples, previews, and downloadable materials.

Privacy and File Safety

This watermark tool processes your PDF file locally inside your browser using JavaScript. Your PDF does not need to be uploaded to a server for basic watermarking. This helps improve privacy and gives you more control over your documents.