hi,

it should be great that image's filename will not md5("Image".id) but a string

for example

caption without spaces and special characters or a dedicated string var

regards

Hello,

You will a 3rd party extension to override the default naming process.
Furthermore you need to edit Joomla!'s default robots.txt and allow /media to be indexed.

An extension to consider is this one: extensions.joomla.org/extension/econa-for-joomla-articles-and-k2-items