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 tried the same test on another hosting account with PHP 7. 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. But, there is a problem with the ReadImage function! I guess what I should do in that case is to break up every part of the url and encode all different parts in some way.
Reads image from filename
It always works fine for the first 10 images, but starting at index X and thereafter it always gets an exception. It seems that when you are reading a page that is far enough into the PDF file, it gets the exception.
I have tried several source PDFs having from 20 to 30 images each. Email Required, but never shown. The error seems to be consistent through this whole domain, but sometimes it’s different from image to image on the same domain.
Some sample code to demonstrate using PHP Version 5. I’m using this snippet for reading images on different websites: I solved it by encoding it correctly, but the answer marked rezdimage correct is a much better solution.
Questions Why is this a problem? This code will leave notifications. If it still fails try reading 5 pages at a time which will hopefully isolate the problem.
ImageMagick examples mostly using php Imagick examples. This doesn’t work with the url: The functions setImageFormat and setFormat, programmed line after line, provided no effect to changing the format to png, bmp, or gif. With an imagemagick object 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: Do you have access to PHP execso that you could run the command line and see if that fails?
ReadImage takes a string containing the folder location of the file, and ReadImageFile takes a handle pointing to the file location.
How to Convert a PDF to JPEG using PHP
I’m not sure if this code is optimal, but it works. No, I’ve tried this. ImagickException Unable to read the file: Uday Hiwarale 1, 16 As described in my answer: Imagick – Can’t read image files from URL. Sign up using Facebook. Does it work with a simple convert command line? Got a patch for a bug? Initially, the first looks far more tempting, since you don’t have to worry about fopen and fclose commands.
The fix for me was finding the tmp directory and setting the correct permissions for it. To clarify, the umagick script consists of only two lines. How can we fix it?