1. 製品
  2.   PDF Security

PDF Security in C#/.NET

暗号化、復号化、デジタル署名で PDF ドキュメントを保護

PDF Security

Secure Your PDF Files in C# with PDF Security. このツールは、機密データを保護するためにドキュメントの暗号化と復号化を行い、さらに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。許可されていないアクセスの防止や権限管理を正確に行いたい場合でも、このツール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 をロックし、許可されていないアクセスを防止します。

暗号化された PDF をいつでも開き、文書を一般公開できるようにします。

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、ビジュアル（PageNumber、Visible、Contact など）を設定できます。 PDF にタイムスタンプを追加し、長期的な文書整合性とトレーサビリティを確保します。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が向上します。

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.

 日本語