Is there a way to batch Export mulitple INDD files to IDML across a drive?

Forum|Forum|5 months ago
October 30, 2025
4 replies
464 views

...or a Mac script? Rather than open up every file and Export as........? Affinity 3 is out and free.

Correct answer Howard_F

As an update to this thread I have found this worked well for me - https://www.marspremedia.com/software/indesign/ and you can pick your export file type.

H

Howard_FAuthorCorrect answer

Inspiring

As an update to this thread I have found this worked well for me - https://www.marspremedia.com/software/indesign/ and you can pick your export file type.

Kasyan Servetsky

Legend

Batch processor script

Export to IDML — Exports InDesign markup (IDML) file to the same location as the InDesign document.

H

Howard_FAuthor

Inspiring

I seem to be having trouble getting this script tp work. Initially it did convert a few files but not many. Now I get this error message. Mac 15.6.1 and Indesign 2026, 21.. What should I be looking for in the log?

Kasyan Servetsky

Legend

I don't have InDesign 2026 so can't test it: maybe something has changed in this version preventing the script from working properly.
Did/Does it work in previous versions 2025/2024?

If so, try to run it using an older API by creating a version specific sub-folder in the Scripts Panel, for example:
Scripts Panel > Version 20.0 Scripts
and moving the batch processor there.
Another guess is maybe something went wrong with particular file(s).

Probably you attempted to process a mix of files — native 2026 and older (converted) — thus some were processed and some failed.

I see the error happens on line 266 while the batch processor thies to execute the doScript command to trigger export_to_idml.jsx. But I need to dubug it to figure out what goes wrong.

leo.r

Community Expert

Affinity 3 is out and free.

By @Howard_F

If your point is that you want to batch-convert to IDML in order to move to Affinity:

Just keep in mind that you won't be able to seek scripts or other automation solutions for Affinity as it's not currently scriptable or otherwise extendable. (Photo and Designer do have some minimal automation options which still don't come even close to what Adobe offers, while Publisher has none).