Element reference
ImageIOPreference
The ImageIOPreference element in IDML: where it appears (Spreads), its 3 attributes, their values, and how real documents use them.
ProIIIreference
ImageIOPreference appears in 41 of the 305 documents surveyed (13.4%), most often in Spreads. Paged does not read this element yet.
Where it appears
Spreads· 41 documentsStories· 1 documents
Inside: Image
Attributes
| Attribute | Values | Seen in | Paged |
|---|---|---|---|
| AllowAutoEmbedding | true ·41 | 100% | not read |
| AlphaChannelName | builtin | 100% | not read |
| ApplyPhotoshopClippingPath | boolean | 100% | not read |
Values are listed only where real documents use a small, closed set; the number after each is how many documents use it. “Seen in” is the share of documents containing ImageIOPreference that set the attribute.
Counts come from a survey of 305 IDML documents (2026-10-11); only aggregate facts are published. Paged’s support is read from its importer and exporter source, and the typed properties from the engine catalog.