Introduction

Welcome to Secure PDF, a powerful suite of components that enable developers to sign, verify, encrypt, and decrypt PDF documents with ease. Designed with the latest PDF security and PKI standards in mind, Secure PDF can be used to build comprehensive PDF solutions that meet security requirements in a variety of environments.

Included Libraries

The .NET Edition includes libraries (.dll files) which are supported in different environments. The following libraries are present in the lib directory after installation:

  • lib\net40\nsoftware.SecurePDF.dll is designed for use in .NET Framework 4.0 and up. This library maintains a familiar API in line with previous versions of the product.

  • lib\net6.0\nsoftware.SecurePDF.dll is designed for use in .NET 6 and up. The .NET 6 library provides cross-platform support while maintaining the same API as the .NET Framework version of the library.

    Support for asynchronous programming patterns (async/await) is exposed in a separate nsoftware.async.SecurePDF namespace. See the Async Functionality page for details.

  • lib\netstandard2.0\nsoftware.SecurePDF.dll is designed for use in .NET Standard 2.0 and up. The .NET Standard library provides cross-platform support for legacy projects.

Included Components

CertMgr The CertMgr component is used to create, read, and manage certificates.
PDFDecrypt The PDFDecrypt component decrypts PDF documents.
PDFEncrypt The PDFEncrypt component encrypts PDF documents.
PDFSign The PDFSign component signs PDF documents.
PDFVerify The PDFVerify component verifies PDF signatures.

Additional Information

You will always find the latest information about Secure PDF at our web site: www.nsoftware.com. We offer free, fully-functional 30-day trials for all of our products, and our technical support staff are happy to answer any questions you may have during your evaluation.

Please direct all technical questions to support@nsoftware.com. To help support technicians assist you as quickly as possible, please provide a detailed and accurate description of your problem, the results you expected, and the results that you received while using our product. For questions about licensing and pricing, and all other general inquiries, please contact sales@nsoftware.com.

Thank You!

Thank you for choosing Secure PDF for your development needs. We realize that you have a choice among development tools, and that by choosing us you are counting on us to be a key component in your business. We work around the clock to provide you with ongoing enhancements, support, and innovative products; and we will always do our best to exceed your expectations!