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PDF Security in C# .NET

Documentize で暗号化、復号化、署名できる PDF 文書を保護

PDF Security in C#

Secure Your PDF Files in C# with PDF Security. このプラグインは文書を暗号化および復号化して機密データを保護し、デジタル署名と信頼できるタイムスタンプを追加して真正性を保証します。共有するすべての PDF に自信を持ちたいプロフェッショナル向けのシンプルで強力なソリューションです。未承認のアクセスを防止したり、権限を正確に管理したりする必要がある場合でも、このプラグインは文書を機密に保ち、業界標準に準拠させます。

Key Features

必要に応じて強力な暗号化で PDF 文書をロックし、未承認のアクセスを防止します。

暗号化された PDF 文書をいつでも開き、文書を公開可能にします。

完全にカスタマイズ可能な設定でデジタル署名オブジェクトを作成します。証明書情報、タイムスタンプ、署名理由、視覚的外観（PageNumber、Visible、Contact など）を設定できます。 PDF 文書にタイムスタンプを追加し、長期的な文書の完全性と追跡可能性を確保します。信頼できるサーバーでタイムスタンプを検証することで文書のセキュリティを強化します。

Getting Started

Why Choose PDF Security

  • Comprehensive Document Protection – Keep your PDFs safe from tampering, unauthorized viewing, and data breaches.
  • Ideal for businesses, law firms, healthcare providers, and any organization dealing with sensitive data.
  • Legally Binding Signatures – Meet compliance requirements for electronic document signing.
  • Enhanced Security – Prevent unauthorized modifications after signing.
  • Professional Appearance – Customize signature visuals to match your brand or document style.
  • Seamless .NET integration for simplified workflows.
  • Supported operating systems include Windows 7-11, and Windows Server 2003-2022, macOS (10.12+), and Linux.
  • Supported frameworks from 4.0 to 8.0.
  • Compatible with various Microsoft Visual Studio versions.
  • Detailed and high-quality documentation

How to Encrypt PDF Document

  • Create an instance of EncryptOptions with the desired passwords and permissions.
  • Set the input PDF file using the AddInput method.
  • Set the output PDF file using the AddOutput method.
  • Call PdfSecurity.Encrypt with the instance of EncryptOptions as parameter

Via .NET


How to Decrypt PDF Document

  • Create an instance of DecryptOptions with the necessary password.
  • Set the input PDF file using the AddInput method.
  • Set the output PDF file using the AddOutput method.
  • Call PdfSecurity.Decrypt with the instance of DecryptOptions as parameter

Via .NET


How to Sign PDF Document

  • Create an instance of SignOptions with the pfx file and the necessary password.
  • Set the input PDF file using the AddInput method.
  • Set the output PDF file using the AddOutput method.
  • Call PdfSecurity.Sign with the instance of SignOptions as parameter

Via .NET


How to add Timestamp to PDF Document

  • Create an instance of SignOptions with the pfx file and the necessary password.
  • Create an instance of TimestampOptions with the timestamp server url.
  • Set the input PDF file using the AddInput method.
  • Set the output PDF file using the AddOutput method.
  • Call PdfSecurity.Sign with the instance of SignOptions as parameter

Via .NET


よくある質問

What is Documentize PDF Security for .NET?

Documentize PDF Security for .NET is a plugin designed to encrypt, decrypt and sign PDF documents within .NET applications. It ensures data protection by allowing you to set passwords and permissions on your PDF files. It also allows you to sign documents with a digital signature.

Can I set password when encrypting PDF documents?

Yes, you can set user and owner passwords.

How does PDF encryption support compliance efforts?

PDF encryption helps ensure that sensitive documents are protected, aiding compliance with regulations such as GDPR, HIPAA, and others that require securing personal or confidential data.

What are the best practices for PDF encryption?

When encrypting PDFs, it’s important to Use strong passwords, Store encryption keys securely to prevent unauthorized access.

Why should I use digital signatures for my PDFs?

Digital signatures verify the authenticity of a document, prevent unauthorized modifications, and help meet legal and compliance requirements for secure document handling.

Can I customize the display of a signature in a document?

Yes, you can customize the display of the signature. To do this, use the following properties Visible, PageNumber, Location, Rectangle and other.

Can I use a custom timestamp server for timestamping?

Yes, you can configure a custom timestamp server and provide authentication credentials in the TimestampOptions to meet your specific requirements.

Which industries benefit from using Documentize PDF Security?

Industries that handle sensitive information, such as healthcare, finance, and legal sectors, benefit from using Documentize PDF Security. For instance, encrypting medical records ensures compliance with HIPAA regulations in healthcare, while in finance, it protects sensitive client information.

Are there examples or documentation available to help me get started?

Yes, comprehensive documentation and code examples are available to guide you through integrating and using the plugin effectively. You can find step-by-step instructions and sample code on the official Documentize documentation site.

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