If you receive errors when uploading files or images to your app, you can increase the file size upload limit by changing your app's PHP settings.
Create a file named .user.ini in your app's web root directory:
apps/APPNAME/public/.user.ini
You will most likely want to change your app's upload_max_filesize or post_max_size or both.
To do so, enter the following lines in your .user.ini file:
upload_max_filesize = 700M post_max_size = 100K
where 700 and 100 are changed to the values you need to set for your app while M and K are changed to the measurements in MB or KB.
For information on changing other PHP settings, check out our tutorial on using .user.ini files.