MasterSpread
The MasterSpread element in IDML: where it appears (MasterSpreads), its 10 attributes, their values, and how real documents use them.
MasterSpread appears in 305 of the 305 documents surveyed (100%), most often in MasterSpreads. Paged reads 4 of its 10 attributes and writes 7.
Where it appears
MasterSpreads· 305 documents
Inside: idPkg:MasterSpread
Contains: Page, Properties, Group, TextFrame, Polygon, Rectangle, GraphicLine, Oval
Attributes
| Attribute | Values | Seen in | Paged | paged.set |
|---|---|---|---|---|
| ItemTransform | number-list | 100% | read · written | |
| Name | text | 100% | read · written | name |
| PageCount | integer | 100% | written | |
| Self | id | 100% | read · written | |
| ShowMasterItems | true ·305 | 100% | read · written | |
| BaseName | enum / reference / text | 89% | written | |
| NamePrefix | enum | 89% | written | |
| OverriddenPageItemProps | — | 89% | not read | |
| PageColor in Properties | enumeration | 89% | not read | |
| PrimaryTextFrame | — | 89% | 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 MasterSpread that set the attribute.
Examples
- Overriding a master item on a body page
- Spread coordinates on a two-page spread
- A two-page spread sharing a master
Explained in
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.
MarginPreference
The MarginPreference element in IDML: where it appears (Spreads), its 8 attributes, their values, and how real documents use them.
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