I have a couple of hundred PEF's that are all in one folder on my harddrive.. would like to copy all of them to DNG's so I can view the thumbnails in windows explorer on my computer.. I can see them in Freestone.. but it is cumbersome for me with my work flow.. Can I do this in bulk?  Got a link to a free down load for me that will work? thanks guys, ann -- ann sanfedele photography https://annsan.smugmug.com https://www.cafepress.com/+ann-sanfedele+gifts https://www.lulu.com/spotlight/annsan https://www.createphotocalendars.com/Shop/annsanfedelecalendarsandbooks