Extend IdealDoc

extData

extData is a Flow parameter. It holds additional JSON data that is passed directly to the document data created by the data queries. This is useful, for example, to add an electronic signature image to the document without having to store it as a file first.

The extData JSON object is made available as the $extData merge field in IdealDoc. For example, with this extData:

{
  "Signature": "BASE64_SIGNATURE_IMG"
}

it can be used in the IdealDoc template like this:

{{image data=$extData.Signature}}