I am not a Iphone user myself... I carry a Samsung Galaxy S4 right now.
I usually just take a pic with my S4 and then email it to myself... and then on my computer I run a application that I can re-size the photo with and get it down to something like 800x600 (which will post here).
I looked online and it looks like you can easily crop photo's with Iphone... but it does not look like there is a re-size option where you can specify a specific size for the image like 800x600.
There are apps available that will let you do that though... see the link below.
Took a stroll today. The mayapples, bloodroot, and trilliums are waking up in north bama.
Nice to know. Thanks for informing us. I was just wondering if the forest floor was coming to life in the south yet. We finally have spring chirpers (peepers) making their spring song up here in SE Ohio.