Add Watermark to PDF

Easily add professional watermarks to your PDF files without installing any software. Our free online tool lets you insert custom text, an image, or both as your watermark. Choose the perfect placement, adjust transparency, and preview your result instantly. Works entirely in your browser for complete privacy — no uploads, no storage. Ideal for branding, copyright protection, or personal use. Fast, secure, and compatible with all devices.

Drag and drop a PDF here or click to select

Watermark Text:

Font Size:

Position:

Text Mark Opacity: 50%

Image Watermark (Optional):

Image Mark Opacity: 30%

Add Text or Image Watermarks to Your PDF

Easily protect and brand your PDF files by adding custom watermarks — all securely in your browser without file uploads. Choose between text watermarks, image watermarks, or use both for maximum impact. This tool offers full control over transparency, placement, and size, ensuring your watermark blends perfectly with your document.

For text watermarks, you can set your preferred text, choose font size, and adjust opacity with an intuitive slider. Image watermarks support PNG, JPG, or WebP files and also include a transparency slider for precise control. Watermarks can be positioned at center, top-left, bottom-right, or placed diagonally across the page.

Works 100% offline in your browser — no uploads.
Use text watermark, image watermark, or both together.
Control watermark opacity with easy-to-use sliders.
Customize text font size for clear visibility.
Multiple placement options: center, top-left, bottom-right, diagonal.
Supports popular image formats (JPG, PNG, WebP) for image watermarks.