PHP中使用Imagick读取pdf并生成png缩略图实例,imagickpng
PHP中使用Imagick读取pdf并生成png缩略图实例,imagickpng
pdf生成png首页缩略图 (服务器需要支持Imagick)
复制代码 代码如下:
/**
* PDF2PNG
* @param $pdf 待处理的PDF文件
* @param $path 待保存的图片路径
* @param $page 待导出的页面 -1为全部 0为第一页 1为第二页
* @return 保存好的图片路径和文件名
*/
function pdf2png($pdf,$path,$page=0)
{
if(!is_dir($path))
{
mkdir($path,true);
}
if(!extension_loaded('imagick'))
{
echo '没有找到imagick!' ;
return false;
}
if(!file_exists($pdf))
{
echo '没有找到pdf' ;
return false;
}
$im = new Imagick();
$im->setResolution(120,120); //设置图像分辨率
$im->setCompressionQuality(80); //压缩比
$im->readImage($pdf."[".$page."]"); //设置读取pdf的第一页
//$im->thumbnailImage(200, 100, true); // 改变图像的大小
$im->scaleImage(200,100,true); //缩放大小图像
$filename = $path."/". time().'.png';
if($im->writeImage($filename) == true)
{
$Return = $filename;
}
return $Return;
}
$s=pdf2png('file/1371273225-ceshi_ppt.pdf','images');
echo "

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