Im using my phone to post pics and i use tapatalk to do it. i had some problems first getting picture right way. First my pics was sideway or worst upside down but i managed to figured out reason to be rotation lock. I checked does my camera change orientation when taking pic. Im usually taking pic vertically with phone so pic goes sideway if orientation lock is on. Try free orientation so pics goes right way.When im using computer to resize i use Irfanview it usually shows is pic sideway or not and you can orientate it and resize easilyOnly Tools Matters