I paid for this yesterday (11/18/2017) and used it once. Today (next day) each time I click on convert it takes me to the page that provides subscription options and I cannot get around this in order to use my year's subscription.
Export PDF used to work for me. Now the OCR function that is supposed to grab Japanese characters in an image PDF and make them "live" no longer does so. It simply creates images in the Word document it spits out. I think the problem is that I briefly bought the Adobe Acrobat Pro annual plan. When I ended that plan and went back to Export PDF alone this problem occurred.