PDF Security Library for .NET

PDF security tool for .NET lets your applications encrypt content, password protect and control permissions of PDF documents. With some lines of code, you can allow whether the user can open, print, copy, edit content, assemble, fill forms, edit annotations, etc. on the PDF documents. It also let you choose the length of the encryption key (40, 128, or 256 bits) or remove the security settings by providing owner or user password.

Key Features

  • Support 40, 128, or 256 bits encryption keys
  • Change PDF permissions
  • Remove PDF security settings
  • Secure PDF documents
  • Source document can be in memory buffer, file on disk, or stream
  • Support many .NET platforms
  • Full example projects and documentation
  • No installation on the server
  • No Adobe or any other third-party tools
  • Royalty-free redistribution
Developer License Company License

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OfficeComponent Offers More Value, With More Features to Convert, Create and Edit PDF, Word, and Excel files

Single Developer

No support

No support
No product updates

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Single Developer

With 1-year support

1-Year support
1-Year product updates

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Single Developer

With Life-time support

Unlimited support
Unlimited product updates

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A Developer License allows ONE developer to create .NET applications using our product. The applications using the component can be redistributed to an unlimited number of PCs and servers. If you have more than one developer, please consider adding more licenses. If you have more than 5 developers, we would recommend purchasing the Company License. All the licenses are royalty-free and include a 1-year free support and major product updates.


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