By default the phpFox script's image size limit is set to 500 kB, this is to avoid having members upload to big photos that takes up both diskspace and bandwidth on your member.
To change the photo size limit go to your AdminCP and navigate to:
Users >> User Group Manager >> Manage User Groups
Select:
(The User Group you wish to change the limit for)
Example:
Registered Users
Look for the option:
Manager User Settings
Then look for the module setting:
Photo
At the bottom of the module options find:
Max file size for photos upload in kilobits (kb). (1000 kb = 1 mb) For unlimited add "0" without quotes.
Then change it to:
(Your need of image size limit)
Example:
0 for no limitation
Would prefer this tutorial visualized? Then view this video tutorial!