Custom XMP properties written by ACDSee applications.

• Exiv2 keys are Xmp.acdsee.<Property>
• The schema namespace URI is http://ns.acdsee.com/iptc/1.0/
• The preferred schema namespace prefix is acdsee

Reference: ACDSee Properties pane

Property	Label	Value type	Exiv2 type	Category	Description
caption	Caption	Text	XmpText	External	A brief description of the file
datetime	Date Time	Text	XmpText	External	Date and Time
author	Author	Text	XmpText	External	The name of the author or photographer
rating	Rating	Text	XmpText	External	Numerical rating from 1 to 5
notes	Notes	Text	XmpText	External	Any descriptive or additional free-form text up to 4,095 characters
tagged	Tagged	Text	XmpText	External	True or False
categories	Categories	Text	XmpText	External	Catalog of hierarchical keywords and groups