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php为png/jpg/gif图片添加水印

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Release： 2016-06-13 09:32:26
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 php为图片添加水印，适用于png/jpg/gif格式图片，可以指定水印的位置和水印的透明度，非常实用，完整的代码如下：

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gif jpg php png for picture Format watermark Add to
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