GroupDocs.Signature for .NET is a flexible library
that allows developers to build new or enhance
existing apps with electronic signature functionality.
The library provides a flexible API and comprehensive
controls for creating custom e-signature workflows of
any complexity. Key features include:

1. Electronic Signature Capture Control. Provides
users with options to sign documents either by
uploading a scanned copy of their signature, typing a
signature with custom font styles, or drawing a
signature with a mouse, touch or a stylus. Handwritten
signatures can be drawn and applied to a document
right in a web-browser.

2. Multiple Document Formats Support. All documents
are signed in PDF format for security. However, the
library can convert over 50+ file formats to PDF, so
that users can get them e-signed as well. Among
supported file formats are: Microsoft Word, Excel,
PowerPoint, Visio, OpenDocument, RTF, CSV, TXT,

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