The JPG Action
The JPG Action creates an JPG export of the InDesign document with the following options:
Page Range: Defines which pages should be exported. Entering "ALL" will export all pages in the document. You can specify a Page Range like "1-3,5,10".
Resolution: Enter the resolution in dpi that the resulting JPG file(s) should be in.
Scale: The size in percent of the document.
Calculate Preview: Check this box to calculate a preview of the InDesign document.
Height & Width: Enter the Heigth and Width of the calculated preview in pixels (only available if Calculate Preview has been checked)