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  Tutorial: PHP Image Manipulation Manipulating Existing Images Tutorial

Another function of the GD Graphics Library is the ability to manipulate images that have already been created and are available on your site. Instead of the ImageCreate() and Image* functions, the ImageCreateFrom() function is used here. There are 3 diff

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Another function of the GD Graphics Library is the ability to manipulate images that have already been created and are available on your site.
Instead of the ImageCreate() and Image* functions, the ImageCreateFrom() function is used here. There are 3 different ways to open the 3 image types supported by GD:

Note: The ImageCreateFromGif() function is supported from GD1.6 or earlier, the ImageCreateFromJpeg() function is supportted from GD1.8 or greater and ImageCreateFromPng() is supported from GD1.3 or greater.


 

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