Hi Traci,
Edocman's limits on upload file size are determined by your server's PHP settings (as well as Edocman specified settings that can be set at Bac-end > Edocman Configuration >Max File size upload). The default values for PHP will restrict you to a maximum 2 MB upload file size.
On the settings page for the upload module, Edocman calculates and displays the maximum file size that you can set based upon two PHP settings: 'post_max_size' and 'upload_max_filesize'. Since 'post_max_size' is the limit for all the content of your post, many people choose 'post_max_size' to be a multiple of 'upload_max_filesize' to allow multiple files to be uploaded, but this is not essential. The upload module limits the size of a single attachment to be less than either post_max_size, or upload_max_filesize, whichever is smaller. The default PHP values are 2 MB for upload_max_filesize, and 8 MB for post_max_size.
Depending on your host, changing these two PHP variables can be done in a number of places with the most likely being php.ini or .htaccess (depending on your hosting situation).
For example, to increase the limit on uploaded files to 10 MB:
Add the below to the relevant php.ini file (recommended, if you have access). Note that for some hosts this is a system-wide setting. However, for hosts running PHP as a CGI script with suexec (for example) you may be able to put these directives in a php.ini file in your Joomla root directory.
upload_max_filesize = 10M
post_max_size = 10M
Thanks
Dam