A lot of people seem to be very surprised that Adobe dropped the INX support from InDesign® 7.0 based on the fact that a lot of twitter messages read like this:
“I finally managed to open a CS5 InDesign file in CS4″ or
“How do I export a CS5 InDesign File to CS3, there is no INX export option ?”
This post is for all people asking these question and haven’t found an answer yet.
The IDML export was introduced in InDesign® CS4 but was not much used for document exchange, because CS4 was the first version to support it and INX export was available anyways. So it made not much sense to export an INDD as IDML for exchange purposes. With the release of the CreativeSuite® 5 and InDesign® 7.0 this has changed. The INX export has vanished from the export options, and IDML has become the premier exchange format for InDesign®. This was no surprise for people who were following the advent of IDML.
So what has changed ? Basically for you as user there is not a big change in the usage of IDML vs. INX, the process is exactly the same as it was with INX:
* Export IDML in CS5 via export
* Load IDML in CS4 as you would open a .indd
The same rules apply as they were valid for INX exchange in earlier versions: As long as you don’t use new functionality, everything is fine, but I advise to check documents to be better safe than sorry !
If you need to go down another version, just export the loaded IDML as INX and open it in CS3. This will work more or less perfectly for simple documents, but every document converted down to CS3 from CS5 should be carefully evaluated and checked for converting errors.
IDML is much more than INX ever was, so if this blog post made you curious about IDML, feel free to browse this blog for other IDML use cases.