How to crop and fix image in intro image on category blog layout?
and this is full image in full article like this
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Sign up to join this communityHow to crop and fix image in intro image on category blog layout?
and this is full image in full article like this
You can use JImage class for image manipulation:
https://api.joomla.org/cms-3/classes/JImage.html
Find an example in slide number 15
http://es.slideshare.net/nikosdion/hidden-in-plain-site-joomla-hidden-secrets-for-code-monkeys
To complement, see this article:
http://phproberto.com/es/36-create-thumbnails-on-the-fly-for-joomla-content-articles
Regards.