Insert fields into a document for e-signature with C# SDK using the API

Add different types of fields to а document, edit them, and assign signer roles for specific fields using the signNow API. Adjust the placement and size of each field to make documents look the way you need.
Want to embed e-signatures into your workflows?
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Get text, data, initials, and signatures added to your document using specific signNow fields.
Make the process of filling smooth and clear for recipients with inserted fields that ask for a specific type of data
  • We provide developers with complete SDKs for all popular languages, allowing them to integrate e-signature workflows without writing a single line of code.
  • With our detailed documentation, integrating the signNow API is a breeze.
  • The signNow API not only provides you with e-signatures: use it to create fillable forms, request payments, and download & archive documents using simple API calls.
Watch the signNow API in action:

Start using the signNow API with any of our SDKs

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