Download

The Download field lets users download a set file: either a static fixed file, or a file originating from a document service.

Property	Value	Description
File source	Document service / Fixed file	Determines which other properties are available.
Document service	A document service configured under Tools	The source of the file, when File source is Document service.
File identifier	Free text, or a file picker	Identifies the external file (Document service), or picks a fixed file value.

When using an external file, test that the file identifier actually resolves to a file, so the field doesn’t try to download something that doesn’t exist.