🔒 PDF Stamper

PDF Stamper

Add text stamps and protect your PDFs

⏳ Processing your PDF...
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Adds password protection to prevent unauthorized editing

Why Choose PDF Stamper?

🔒 Privacy First

Your files are automatically deleted within 24 hours. GDPR compliant. We never store your documents permanently.

⚡ Fast & Simple

No registration required for free tier. Upload, stamp, download. Process PDFs in seconds, not minutes.

🔑 Edit Protection

Automatic password protection prevents unauthorized editing. Files open normally for reading and printing—editing is locked.

☁️ Cloud Integration

Process files directly from Dropbox and Google Drive URLs. No need to download first—just paste the link.

💻 Developer API

REST API for bulk processing. Simple authentication, clear pricing. View API docs

📐 Diagonal Watermarks

Professional diagonal watermarking with customizable opacity. Not just corners—full page coverage.

Frequently Asked Questions

Is PDF Stamper completely free?

Yes! Files up to 5 pages are completely free with no registration required. Need more? Bulk pricing available—just 1.5¢ per page. No monthly subscriptions or hidden fees.

Do you store my PDF files?

No. Original files are never stored on our servers. Processed PDFs are temporarily kept for download and automatically deleted after 24 hours or immediately after your first download—whichever comes first. We are GDPR compliant and take data protection seriously.

How does password protection work?

When enabled, we automatically set a secure password that prevents editing, copying, or modifying the PDF. The file opens normally for reading and printing—no password required for viewing. This protects your content while keeping it accessible to recipients.

Can I use files from Dropbox or Google Drive?

Yes! Our API supports direct processing from Dropbox and Google Drive URLs. No need to download files to your computer first—just provide the shareable link. This is especially useful for automating workflows and processing files stored in the cloud.

Is there an API for developers?

Yes! We offer a simple REST API for bulk PDF watermarking and password protection. The API uses straightforward authentication and has clear, predictable pricing. Check our API documentation for integration details and code examples.

Can I use this for commercial purposes?

Absolutely! Our service is available for both personal and commercial use without restrictions. Many businesses use PDF Stamper for contracts, proposals, legal documents, and branded materials. Enterprise API plans available for high-volume users.