0 Replies Latest reply on May 27, 2012 2:58 PM by Dennis W.

    Discrepancy in file size of photos in EPUB using inDesign 6.0

    Dennis W.

      In working with the ePub to understand how to make changes I noticed a discrepancy in a file size of the first photo in my ePub.

       

      This problem only occurs in inDesign 6.0.

      inDesign 5.5 works fine.

       

      After running many test I discovered that all jpeg files anchored to a text frame will have a resolution equal to the one specified in the image page of the epub export options and not the resolution specified in the object export options. However all illustrator files in the document have a resolution equal to the resolution specified in the object export options as they should.

       

      Following is detailed data supporting my discovery.

       

      Object export options for all 4 files follow:

      oeo materials.JPG

      oeo stepout.JPGoeo fig8a.JPG

      oeo fig8b.JPG

      Image page of the epub export options follow with resolution set at 150ppi:

      eeo 150.JPG

      Results:

      result 150.JPG

      Note that file # 1 has a output resolution of 150 and it should be 300.

       

      Image page of the epub export options follow with resolution set at 300ppi:

      eeo 300.JPG

      Results:

      Result 300.JPG

      Note that file # 2 has a output resolution of 300 and it should be 150.

       

      Also note that all illustrator files have the correct file ppi in all tests so far.

       

      I cannot explain this as it is my understanding that the Object Export Options should override whats on the image page of the epub export options.

       

      Is this an error in inDesign or am I missing something?

       

      Thanks,

       

      Dennis