Generate Document from Template

Generates a downloadable PDF document from a specified Lumin template.

This endpoint takes an existing template identified by template_id and produces a static document based on its content and structure.

Currently, this operation supports Lumin Sign templates, allowing you to prefill merge text tags and form fields, and create a finalized PDF ready for distribution or archiving.

Path Parameters
template_id string — REQUIRED ID of the template to generate document from

Request Body
tags object[] Key–value pairs for Merge Text Tags defined in the template. Keys must match tag names. Values replace those tags in the generated document. Currently supports merge tags with syntax: [text-merge|req|sender|object.field].
fields object[] Key–value pairs for Form Fields defined in the template. Keys must match field names. Values prefill the corresponding fields.
document_name string Optional custom name for the generated document. Defaults to the template's name if omitted.

Responses
200 Successfully generated document from template Schema — OPTIONAL document_name string Name of the generated document (from input or default). signed_url uri Signed HTTPS URL to download the generated document. Expires in 30 minutes. expires_at unix-epoch Unix epoch timestamp in seconds when the signed URL expires.
4xx Unexpected error Schema — OPTIONAL error_code string error_message string