I'm using Steemit and I just upload photos right off the bat. Since I started with steemit, I got used to it. I was just puzzled of why does it happen and thought maybe there was something I should know. Some mardown styling maybe.
I'll try to process them with an editing software and see what works. Thanks!
Good luck. You may want to take a look at SteemPeak, too. It's the same in a lot of ways, but easier to use.
Thanks!