Add Watermark to PDF Online Free
Protect and brand your PDF documents by adding custom text or image watermarks in seconds. Adjust opacity, rotation, size, and position while keeping your original file quality intact — all securely processed in your browser with no upload or signup required.
Introduction
Add watermark to PDF online free using ProPDFTool’s secure browser-based PDF watermark tool. Easily add text watermark to PDF such as “Confidential”, “Draft”, or your company name, or add image watermark to PDF using your logo or brand graphic while preserving original document quality. Our advanced PDF watermark generator allows you to adjust opacity, rotation, font size, position, and tile pattern for complete customization. No upload storage, no watermark added by us, and no signup required. This secure PDF watermarking tool works on mobile, desktop, Windows, Mac, Android, and iOS devices without installing any software. If you are searching for stamp PDF online, watermark PDF without Acrobat, free PDF watermark generator, or protect PDF with branding, ProPDFTool provides instant and private file processing directly in your browser.
Key Features & Benefits
Custom Text Watermark
Add personalized text like “Confidential”, “Draft”, or company name across your PDF pages instantly.
Logo & Image Watermark
Upload PNG or JPG logo and insert it as watermark to protect and brand your documents.
Full Customization Control
MAdjust opacity, rotation, font size, scale, and position for perfect watermark placement.
Apply to All or Selected Pages
Choose to watermark the entire document or apply watermark only to specific pages.
Secure Browser Processing
All watermark processing happens locally in your browser. No file upload, no storage.
How to Add Watermark to PDF Online
Select Your PDF
Choose or drag and drop the PDF document you want to watermark.
Insert Watermark
Add custom text watermark or upload your logo/image.
Adjust Appearance
Set opacity, rotation angle, font style, size, and position.
Apply & Download
Apply watermark and download the updated PDF instantly.
Why Use Our Add Watermark to PDF Tool
Instant Watermarking
Add text or image watermark to your PDF in seconds with fast browser-based processing.
Private & Secure
Your documents are processed locally in your browser. No uploads. No storage. Full privacy.
Full Customization
Control opacity, rotation, font size, scale, and placement for perfect watermark positioning.
Common Use Cases
Confidential Documents
Add “Confidential” or “Draft” watermark to contracts, reports, and internal files.
Company Branding
Insert company logo watermark on proposals, presentations, and invoices.
Copyright Protection
Protect ebooks, study materials, and digital assets with visible ownership watermark.