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Home Backend Development PHP Tutorial php imagick库处理pdf问题

php imagick库处理pdf问题

Jun 23, 2016 pm 02:01 PM

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Fatal error: Uncaught exception 'ImagickException' with message 'unable to open image `papers/1375680721.pdf': No such file or directory @ error/blob.c/OpenBlob/2622' in C:\xampp\htdocs\fc\editpaper.php:38 Stack trace: #0 
C:\xampp\htdocs\fc\editpaper.php(38): Imagick->readimage('papers/13756807...') #1 C:\xampp\htdocs\fc\editpaper.php(108): pdf2png('papers/13756807...', 'papers/', 0) #2 C:\xampp\htdocs\fc\editpaper.php(211): anli->insert('') #3 {main} thrown in C:\xampp\htdocs\fc\editpaper.php on line 38

报如下错误
function pdf2png($PDF,$toPath,$page){   	if(!extension_loaded('imagick')){		echo "imagick";		return false;   	}   	if(!file_exists($PDF)){		echo "noexists";		return false;   	}	$IM = new imagick();   	$IM->setResolution(1000,2000);   	$IM->setCompressionQuality(100);   	$IM->readImage($PDF."[".$page."]");	foreach ($IM as $Key => $Var){		$Var->setImageFormat('png');       		$Filename = $toPath.time().'_'.$Key.'.png';       		if($Var->writeImage($Filename) == true){           			$Return[] = $Filename;       		}	}	return $Return;}
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回复讨论(解决方案)

他说的很明确了,papers/1375680721.pdf 不存在

他说的很明确了,papers/1375680721.pdf 不存在 不是这个原因,文件是存在的

 'unable to open image `papers/1375680721.pdf': No such file or directory
“无法打开图像papers/1375680721.pdf”:没有这样的文件或目录

 'unable to open image `papers/1375680721.pdf': No such file or directory
“无法打开图像papers/1375680721.pdf”:没有这样的文件或目录
@ error/blob.c/OpenBlob/2622' 这个错误是什么意思?

 'unable to open image `papers/1375680721.pdf': No such file or directory
“无法打开图像papers/1375680721.pdf”:没有这样的文件或目录
if(!file_exists($PDF)){        echo "noexists";        return false;       }
如果文件真不存在,过不了这个判断的

看看是不是文件权限问题,把papers/1375680721.pdf,权限设成777

看看是不是文件权限问题,把papers/1375680721.pdf,权限设成777 也不是权限问题,我怀疑是imagemagick有问题,我打开imagemagick把pdf文件丢进去,提示

if(!file_exists($PDF)) 只是检查了 $PDF 指向的文件是否存在
而你打开 pdf 的语句是 $IM->readImage($PDF."[".$page."]");
显然 $PDF 和 $PDF."[".$page."]" 不是一回事
你的这个写法是从哪里看来的?请给出出处!
我搜索到的相关代码中都没有见到这个写法
如果说 $PDF."[".$page."]" 是表示 $PDF 的第 $page 也得话,那么若 $page 所表示的页不存在的话,是否也应该报错呢?

我没有 imagick 环境,无法测试。只是按常理推导

Windows系统下运行,还需要装一个安装软件ghostscript;下载地址:http://downloads.ghostscript.com/public/gs904w32.exe  ; 祝你成功。



 'unable to  open image `papers/1375680721. pdf': No such file or directory
“无法打开图像papers/1375680721.pdf”:没有这样的文件或目录
if(!file_exists($PDF)){        echo "noexists";        return false;       }
如果文件真不存在,过不了这个判断的

要不,你看下这个帖子吧,好像也是类似的问题

http://stackoverflow.com/questions/4637251/unable-to-open-image-error-when-using-imagemagicks-filename-references

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