Contributions - File Size


I've recently downloaded the Contributions plugin and I am having issues with increasing the file size. On multiple occasions guest users have tried uploading files but have been unable to due to the file size. Where on my php server can I change the file size for this plugin? I've searched all of the files contained in the Contributions file but have been unsuccessful with finding the proper location. Any advice or assistance you can give is appreciated!

Thank you,

Maximum upload size is generally controlled by the php.ini settings post_max_size and upload_max_filesize.

Thanks John!