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I am not sure if this is the right tag to ask this question.
I have see many facebook apps which generate a customized image as output of the app wherein profile pics of users and their friends are superimposed or say combined to make one single image. After that tagging is done as well.
Can anybody tell me how is it done?
I am trying to make a similar app using php
Thanks in advance
I’ve used Imagick for a while – really easy. Its done by making calls to libraries such as the ones listed here and in @darlinton’s answer. The libraries have functions like borderImage, cropImage, resizeImage, compositeImage.