reduce gif image dimension [duplicate]

This question already has answers here: Closed 11 years ago.

Possible Duplicate:

How do I auto resize user's inputted images to a specific dimension in PHP?

how to reduce 开发者_如何学编程the dimension dynamically after uploading the file to server for a gif file I want the uploaded image to resize to a specific size after uploading of file takes place

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try this function...

http://php.net/manual/en/function.imagecopyresized.php

Maybe it's not what you meant, if it's not, please explain.