dongwen6743 2017-01-26 05:59
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php imagick将pdf转换为png高品质

I'm trying to convert a PDF to a high quality PNG via Imagick, but the file keeps coming out fuzzy. Currently, I'm running the following options but can't find the right flags to get a clear PNG out of the conversion. The original PDF file is 8.5 x 11. Suggestions? Thanks!

$image = new \Imagick(storage_path('app/'.$path));
$image->setResolution( 200, 200 );
$image->scaleImage(1700,2200);
$image->setImageFormat( "png32" );
$image->writeImage(storage_path('app/'.$split[0].'.png'));
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  • doupingzhi9674 2017-01-26 09:53
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    You need to set the resolution before reading the image because the image is rasterised when read, so it doesn't help to set the resolution afterwards - it's too late!

    Try along these lines:

    $imagick = new Imagick();
    $imagick->setResolution(288,288);
    $imagick->readImage('someFile.pdf');
    
    本回答被题主选为最佳回答 , 对您是否有帮助呢?
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