IDML

InDesign Markup Language document
File type: Document file
Files with idml extension can be usually found as InDesign documents saved in special InDesign Markup language.
What is idml file?
File type category:
Document file
Date updated: January 2, 2025
File extension idml is best know to be associated with Adobe InDesign software, part of Adobe Creative Cloud and previously Creative Suite.
The InDesign Markup Language was introduced with InDesign CS4 and InDesign still supports backward compatibility with .inx files.
IDML format was designed to replace the INX format, which is more difficult to create and edit. IDML files provide an interchangeable format for Adobe is InDesign documents, as well as a way for third-party tools to modify and assemble InDesign documents.
In some cases you may want to save an InDesign in interchange markup format. It’s especially useful to save in this format when you open documents from other apps.
The idml file is a renamed zip archive, which contains various XML files:
- Resources
- Spreads
- Stories
- XML
- MasterSpreads
- META-INF
How to open idml file?
Use Adobe InDesign to open and work with the *.idml files.
How to convert idml file?
Your best option for conversion or export of *.idml file would be to use InDesign because hardly any 3rd party apps support IDML format.
Suggested software to open idml file:
Associated software actions with the idml file
Software applications that can open idml files:
Adobe InDesign (Microsoft Windows)
Adobe InDesign for Mac (Apple macOS / Mac OS X)
Software applications that can edit idml files:
Adobe InDesign (Microsoft Windows)
Adobe InDesign for Mac (Apple macOS / Mac OS X)
Software capable of saving idml files:
Adobe InDesign (Microsoft Windows)
Adobe InDesign for Mac (Apple macOS / Mac OS X)
Software apps that create idml files:
Adobe InDesign (Microsoft Windows)
Adobe InDesign for Mac (Apple macOS / Mac OS X)
Software apps that import idml files:
Scribus (Microsoft Windows)
iBooks Author (Apple macOS / Mac OS X)
Affinity Publisher (Multiplatform)
Software apps that export idml files:
PDF2ID Enterprise (Microsoft Windows)
Affinity Publisher (Multiplatform)
Software apps that print idml files:
Adobe InDesign (Microsoft Windows)
Adobe InDesign for Mac (Apple macOS / Mac OS X)
Software applications that handle other tasks involving idml files:
Adobe Creative Suite (Microsoft Windows)
Adobe Creative Suite for Mac (Apple macOS / Mac OS X)
Adobe Creative Cloud (Multiplatform)