we are constantly exporting PDF's from Indesign to place in layouts. The last couple of updates, Indesign insists on having IDML as the default choice. It used to be once you export a PDF, the rest would default to the same format, but now Indesign just defaults to IDML every time & it is infuriating to open the folder that shud B full of PDF's and find one PDF & the rest IDML :>(