Free PDF Watermark Adder Online — Add Text or Image Watermarks
Add custom text or image watermarks to your PDF pages — 100% free, private, no upload to server
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100% Private
Files never leave your browser
Text & Image Mode
Add custom text or image logos
Fast Processing
Apply watermarks instantly
Preserve Quality
Original quality maintained
How to Add Watermark to PDF Free Online
Use this free online PDF watermark tool — no sign-up or installation needed. Upload your PDF file by dragging it into the drop zone or clicking to browse. Choose between a Text watermark or an Image logo watermark. Customize the styling parameters: text string, font size, color, opacity, and rotation angle. Optionally, specify a page range (e.g. "1,3,5" or "1-5") to only apply watermarks on specific pages. Click "Download Watermarked PDF" to compile your finished file instantly.
Why Choose UtilityX Free PDF Watermark Adder Online?
Unlike cloud converters that upload documents to external servers, UtilityX processes everything locally inside your browser using JavaScript. Your files are completely safe and never transmit over the network, making this utility perfect for company templates, legal contracts, invoices, and sensitive financial logs.
Use Cases for PDF Watermarking
Protect your copy-written PDF drafts with transparent text labels like "DRAFT", "CONFIDENTIAL", or "COPYRIGHT". Embed company brand logos in the center of invoice templates, project sheets, or slide presentations. Secure your intellectual property online with ease, in a matter of seconds.
Frequently Asked Questions
Are my PDF files uploaded to a server?
No. All watermarking processing happens locally inside your browser using JavaScript. Your files never leave your device, ensuring complete privacy.
Can I use custom image logo watermarks?
Yes, you can upload PNG, JPG, SVG, or WebP images to overlay as a watermark with adjustable scale and opacity.
How do I choose which pages to watermark?
You can apply it to all pages or specify range formats (e.g. "1-3,5" or "2-8") in the settings range box.
Does adding watermarks reduce PDF quality?
No. The watermark layers are drawn on top of existing elements. The original page contents are not re-compressed.