Watermark PDF
Watermark PDF lets you add text or image watermarks to any PDF document directly in your browser. Upload your PDF, create a text watermark with custom font, color, size, and opacity, or upload a logo or image to use as a watermark. Position the watermark anywhere on the page by dragging, resize it by pulling the corner handle, and apply it to a single page or every page at once. Everything runs locally in your browser, so your documents are never uploaded to any server.
Text Watermark
Add custom text like CONFIDENTIAL, DRAFT, or your company name with adjustable font, color, size, opacity, and rotation angle.
Image Watermark
Upload a company logo, stamp, or seal as a PNG or JPG and overlay it on your PDF with adjustable transparency and rotation.
Adjustable Opacity
Fine-tune watermark transparency from 5% to 100% so it protects your document without obscuring the content underneath.
Apply to All Pages
Apply watermarks to every page of a multi-page PDF in one click, or choose to watermark only the current page.
Add Text Watermarks to PDF Documents
Text watermarks are the most common way to mark documents as confidential, draft, or proprietary. Type your watermark text, select a font and color, and adjust the font size to match your document. The opacity slider lets you control exactly how transparent the watermark appears, from barely visible to bold and prominent. Rotate the text diagonally for a classic watermark look, or keep it horizontal for a header-style stamp. The preview updates in real time so you can see exactly how the watermark will appear before applying it.
Customizable Font, Color, and Size
Choose from multiple fonts including Helvetica, Times New Roman, Georgia, Courier, and Comic Sans. The color picker gives you full control over the watermark color, and the size slider ranges from 12px to 120px. Combine these options to create a watermark that matches your brand or document style perfectly.
Upload Image Watermarks and Logos
For branding purposes, upload your company logo or a custom stamp image as a watermark. PNG images with transparent backgrounds produce the cleanest results because the transparent areas let the document content show through. After uploading, adjust the opacity to make the logo subtle or prominent, and rotate it to any angle. Drag the watermark overlay to position it exactly where you want it on the page, and resize it using the corner handle.
Apply Watermarks to Every Page
When you need to watermark a multi-page document, check the Apply to all pages checkbox before processing. The watermark will be placed in the same position and at the same size on every page. This is particularly useful for marking entire contracts, reports, or presentations as confidential or draft in a single step.
Free PDF Watermark Tool with Complete Privacy
Your PDF documents may contain sensitive business, legal, or personal information. This tool processes everything directly inside your browser tab using JavaScript. The PDF loads into browser memory, watermarks are rendered and applied locally, and the finished file is saved straight to your device. Nothing is uploaded, nothing is stored, and you never need to create an account. There are no usage limits, no premium tiers, and no restrictions on document size.
Client-Side Processing for Document Security
Because all PDF processing happens inside your browser, your documents are never transmitted across the network. Confidential contracts, financial reports, medical records, and other sensitive documents can all be watermarked with full confidence that your file contents stay completely private.
Related PDF Tools
These tools work alongside Watermark PDF to help you manage your documents:
- Sign PDF - Draw, type, or upload your signature and place it on any PDF document
- Rotate PDF - Rotate individual pages or the entire PDF document
- Merge PDF - Combine multiple PDF files into a single document
- Compress PDF - Reduce PDF file size while maintaining quality