Add Watermark to PDF Online — Stamp PDF Files Free
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Why Use Our Free PDF Watermark Online Tool?
Our PDF watermark tool helps you add visible text or logo marks to documents in seconds. It is ideal for branding, copyright notices, draft labels and document identification.
Need to add watermark to PDF for business files, reports, proposals or internal documents? Our tool makes it easy to place a watermark exactly where you want it.
You can watermark PDF online without installing software. Add text watermark PDF labels like Draft, Confidential, Sample or Approved directly in your browser.
Our PDF watermark maker lets you create simple text watermarks or upload a logo for branded documents. No signup, no complicated editing process and instant download.
Why Add Watermarks to PDFs?
Legal and compliance requirements often mandate that draft documents be clearly marked to prevent them from being mistaken for final versions.
Organizations protect intellectual property by watermarking proprietary documents with company names, preventing unauthorized redistribution.
Stamping PDF files with branding helps maintain professional identity when sharing documents externally.
How to Add Watermark to PDF Online
- 1
Upload Your PDF
Upload the PDF file you want to watermark. Our tool prepares the document for text or logo watermark editing.
- 2
Choose Text or Logo Watermark
Add custom text or upload a logo, then adjust size, opacity, rotation and position. You can apply the watermark to all pages or selected pages.
- 3
Apply and Download
Click add watermark and download your updated PDF instantly. Our PDF watermark maker works online with no signup required.
Key Features
PDF Watermark
Add visible text or logo marks to PDF documents in seconds for branding and identification.
Add Watermark to PDF
Place a watermark exactly where you want it on business files, reports and proposals.
Watermark PDF Online
Add text watermark PDF labels like Draft, Confidential or Approved directly in your browser.
PDF Watermark Maker
Create text watermarks or upload a logo for branded documents with no signup required.
Supported Formats
| Setting | Range | Default |
|---|---|---|
| Opacity | 10% – 100% | 30% |
| Angle | Any degrees | 45° |
| Font Size | 8 – 200 px | 48 px |
| Processing | Server-side | Required |
Tips & Best Practices
45° diagonal at 30% opacity is the standard for legal documents.
Use larger font sizes for CONFIDENTIAL watermarks and smaller for subtle branding.
Test with a single page before processing large documents.
After watermarking, use Compress PDF to optimize the final file size.
Frequently Asked Questions
How do I add watermark to PDF online for free?
Upload your PDF to our free PDF watermark tool, enter text or upload a logo, choose the position and style, then apply the watermark and download the file instantly.
Can I add a text watermark PDF label like Draft or Confidential?
Yes. Our tool lets you add custom text watermark PDF labels such as Draft, Confidential, Sample, Approved or any text you need.
Can I add a logo watermark to a PDF?
Yes. Our PDF watermark maker allows you to upload an image or logo and place it on your PDF pages with adjustable size, opacity and position.
Can I watermark PDF online without software?
Yes. You can watermark PDF online directly in your browser without installing any software or creating an account.
What is the difference between a watermark and a stamp on a PDF?
A watermark is usually a semi-transparent text or image placed in the background or across the page, while a stamp PDF effect is often more visible and used as a label like Approved or Draft.
Can I apply a watermark to all pages in a PDF?
Yes. You can apply your watermark to all pages, only the first page or a selected page range depending on your needs.