To resize the image in an article, please follow the steps provided below:Go to Joomla backend -> Content -> Articles -> Open the article in which you want to resize the image -> right click on the image -> image -> dimensions -> change the dimensions as per requirements -> SaveTo resize the image in a category, please follow the steps provided below:Go to Joomla backend -> Content -> Categories -> Open the category in which you want to resize the image -> right click on the image -> image -> dimensions -> change the dimensions as per requirements -> Save