
Convert PNG attachments to JPG.
Example, a PNG image which is 10MB can be converted to JPG and the new file size can be as little as 1MB.
(Example of Convert to jpg link)

Installation:
- Download Andy-ConvertToJpg-1.3.zip and unzip it.
- Copy the src/addons/Andy/ConvertToJpg directory to your server.
- From the Admin Control Panel Install the add-on.
This add-on requires ImageMagick PECL extension to be enabled. Make sure the following is checked:
Admin control panel -> Setup -> Options -> Attachments -> Default Image Processor -> ImageMagick PECL extension