My goal is to extract about 30 JPG or PNG images from a PDF using PHP. I’m using ImageMagick from PHP in a shared hosting. Imagick::readImage. (PECL imagick ). Imagick::readImage — Reads image from filename. Description. bool Imagick::readImage (string $filename). Example case: extract page 1 of a pdf file and save it as jpg image. $i = new Imagick(); $i->setResolution();.
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I just encountered a similar issue. Try to use urlencode function for encode special chars of url:. The fix for me was finding the tmp directory and setting the correct permissions for it.
How to Convert a PDF to JPEG using PHP – Arjun
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It is not running a loop and finally getting the exception on the 16th page. Imagick – Can’t read image files from URL. Questions Why is this a problem?
How to Convert a PDF to JPEG using PHP
I solved it by encoding it correctly, but the answer marked as correct is a much better solution. Got a patch for a bug? ImageMagick examples mostly using php Imagick examples.
It seems that when you are reading a page that is far enough into the PDF file, it gets the exception. But, there is a problem with the ReadImage function!
I have tried several source PDFs having from 20 to 30 images each. ImagickException Unable to read the file: If it still fails try reading 5 pages at a time which will hopefully isolate the problem.
The functions setImageFormat and setFormat, programmed line after line, provided no effect to changing the format to png, bmp, or gif. With an imagemagick reeadimage whose data was created from this function, I could scale, change the colors, and perform artistic effects upon the object, without any problems at all, but then there was a problem with saving: I’m using ImageMagick 6.
Initially, the first looks far more tempting, since you don’t have to worry about fopen and fclose commands.
The Imagemagick developers have nothing readkmage do with Imagick. If you have just uploaded the PDF and want to generate an image from the first page, the  needs to be added to the image name as a text string. Try to use urlencode function for encode special chars of url: Bear in mind this is running in PHP from a shared hosting account so I do not have a Command line environment to run a convert command.