Indesign export JPEG script with control of suffix

[Joshua37460329ov7o]

How can I write a JavaScript script for InDesign to export JPEGs while ensuring that any leftover text in the "Suffix" field from previous exports (e.g., "_^P" left after exporting pages) is cleared or replaced?

Currently, when I use an export script, it adds "_01" to every image due to this leftover input.

Is there a way to access and modify the value in the "Suffix" field through the script?

Any help will be appreciated.

[Peter Kahrel · Accepted solution]

Use an object-model viewer, e.g. https://www.indesignjs.de/extendscriptAPI/indesign-latest/#about.html

There you'll find the jpegExportPreferences property, which in turn has the jpegSuffix property. To nuke an existing string, do this:

app.jpegExportPreferences.jpegSuffix = '';

[Joshua37460329ov7o]

Brilliant, this worked. Thanks for the link also, my searching lead me to here https://developer.adobe.com/indesign/dom/api/j/JPEGExportPreference/  where it did'nt have this.

[Peter Kahrel]

The page you saw is for UXP, the one I sent you is for ExtendScript. Strange though that jpegSuffix is missing on that page. It seems unlikely that UXP doesn't have that property.