.NET eSignature APIs

Automate document signing process - Electronically sign Microsoft Word, Excel, PowerPoint and PDF documents in .NET applications

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GroupDocs.Signature  for .NET

GroupDocs.Signature for .NET

 

GroupDocs.Signature for .NET allows developers to write applications with the ability to significantly sign electronic docs of various file formats. This e-signing API permits the users to add different types of signatures like text, image or digital signatures on electronic documents. The quite captivating fact about the API is, its UI less and independent calls can be made.

Using .NET Digital Signature API, users can easily sign their personal or business Microsoft Word, Excel, PowerPoint and PDF documents. In any C#, ASP.NET or .NET based application, API permits users to add eSignatures with its own required manageable properties such as dimension, alignment, and protection.

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Advanced .NET Digital Signature API Features

 

 

Easy integration

 

Upload, type or draw signatures

 

REST API solution so integrated on desktop, mobile and web

 

Multiple supported document formats

 

Multiple template elements formatting support

 

Multiple signature types

 

Multiple signature properties

 

Text verification for all document types

 

Digital signature verifications for all types

 

Changing output save format support

 

Change, add or remove passwords

 

Image manipulating effects on signature

 

Generate text as image and apply image filters

 

Setup signature on arbitrary pages like first, last, even, odd etc

 

Different Image Appearance to apply transparency, borders, etc

 

Manipulate signature margins

 

Different measure units support like pixels, percents, millimeters

Multiple Signature Types

  • Text
  • Image
  • Digital signatures with different certificate type such as Public-Key Cryptography Standards, X.509 Certificate, p7b

Common Text, Image and Digital Signature Properties

  • Document page number
  • Height
  • Left
  • Sign all pages
  • Top
  • Width
  • TEXT only for Text and Image properties

Specific Digital Signature Properties

  • Digital certificate
  • Document page number
  • Horizontal alignment
  • Image file name
  • Image stream
  • Password
  • Rectangle
  • Signature
  • Vertical alignment
  • Visible

Installation and Usage

.NET signature API files can be installed/downloaded directly as:

Once the API package is installed using any of the these sources – just add reference of GroupDocs.Signature.dll and you are ready to add signatures on e-documents.

Support and Learning Resources

 

GroupDocs.Signature offers individual electronically document signing APIs for other popular development environments as listed below: