Sign PDF in C# .NET
Digitally sign your PDF documents to confirm their authenticity using Documentize .NET Plugin
PDF Signature in C#
Digitally sign PDFs with ease using Documentize Sign PDF for .NET, a powerful solution for secure and legally binding electronic signatures. Whether you’re signing contracts, invoices, or official documents, this PDF signing tool ensures authenticity, integrity, and compliance with industry standards.
The C# integration with Documentize.Plugins library allows developers to automate and customize the PDF signing process. By defining a SignatureDemo class, the plugin enables you to:
🔹 Create a digital signature object with customizable options.
🔹 Set signature parameters, including certificate details and signature appearance.
🔹 Apply the signature to a PDF document securely.
🔹 Save the digitally signed PDF to a specified output file.
With Documentize Sign PDF, organizations and developers can easily integrate digital signature capabilities into their .NET applications, ensuring document authenticity and enhanced security.
How to Sign PDF Documents via .NET?
- Reference Documentize in your project
- Set your license keys
- Instantiate a
Sign PDFobject to set the stage for the PDF merging process - Create a new instance of the Signature plugin.
- Create a new instance of the SignOptions class and set the input PFX file path and password.
- Add the input file to the SignOptions.
- Add the output file to the SignOptions.
- Set the reason, contact information, and location of the signature
Why Choose Documentize Sign PDF?
- Secure & tamper-proof – Protect documents from unauthorized modifications.
- Flexible signature options – Use visible or invisible digital signatures.
- Compliance-ready – Meets legal and industry security requirements.
- Smooth .NET integration – Automate PDF signing in your applications.
- Detailed and high-quality documentation
Frequently Asked Questions
What does Documentize Sign PDF for .NET do?
Documentize Sign PDF for .NET is a plugin deSigned to Sign multiple PDF documents into a single PDF file within .NET applications. It simplifies the process, providing a convenient solution for consolidating PDF files.
Is Documentize Sign PDF for .NET limited to only to Sign multiple PDF into single PDF?
Yes, PDF Sign PDF for .NET is deSigned specifically for merging multiple PDF into single PDF. For other operations you can use other PDF plugins or the full capabilities of Documentize library.
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.
Are digital signatures legally recognized?
Yes, digital signatures are legally binding in many regions and comply with regulations such as eIDAS, ESIGN, and UETA.
Does the tool support certificate-based signatures?
Yes, the tool allows the use of certificate-based digital signatures to enhance security and authentication.
Can I verify if a PDF has been tampered with after signing?
Yes, digitally signed PDFs include integrity verification, allowing users to check whether the document has been altered after signing.
