This article describes how to increase the maximum file upload limit from the default 2 Megabytes. The limit needs to be increased if you are uploading files (such as PDF’s and images) larger then 2 Megabytes via a CMS (e.g. WordPress , Joomla , Drupal).
Prerequisite
Login credentials into your Plesk Server.
Instructions
Log into the Website hosting for your domain and select the Websites and Domains tab, then click on PHP Settings:
Under Performance settings you will need to increase both upload_max_filesize and post_max_size limits.
To adjust the maximum post size, enter a value into the select box by left clicking first.
For example for 20 Megabytes enter “20M”, for 64 Megabytes enter “64M”
