PDF Security Custom Opacity & Scaling

Add Watermark & Stamp Logos to PDF Documents

Protect your intellectual property, draft documents, and contracts with custom text stamps or company image watermarks.

Instant Processing

Browser-based. In-memory processing. Zero permanent file storage.

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Quick Answer / Summary

Watermarking stamps an image or text layer across all or selected PDF pages beneath or above document text with selectable opacity, guaranteeing copyright attribution and document status.

Key Capabilities & Benefits

Support for PNG, JPG, and SVG stamps
Adjustable opacity and scaling
Batch apply across all document pages
High vector precision

How to Use Add Watermark & Stamp Logos to PDF Documents (Step-by-Step)

1
Upload Base PDF

Upload the PDF document you want to stamp.

2
Upload Watermark Image

Upload your company logo, signature, or draft stamp.

3
Generate & Download

Download your watermarked PDF instantly.

Technical Specifications & Limits

Supported Stamps PNG, JPG, BMP, Vector Logos
Positioning Center, Tiled, Diagonal, Header/Footer
Alpha Transparency Full 0-100% control

Frequently Asked Questions

No, you can configure semi-transparent opacity so underlying text remains completely legible.