As per your " automatic" rotation of your pics when posted,
happening when posted from the smartphone, here is
what I found out and how to overcome it :
- happened from my iPhone ( all from 4 to 5s):
- take your shots in the horizontal position, home/shoot button
on right side, camera lens/eye upper left corner.
Pics will keep the orientation, when uploaded.
Little disadvantage may be the changed
width for the motive..
For me a work-around, simple but ok..
Best, hs