php - ImageMagick getting uncaught Fatal error after doing 5-7 sets of PDF to JPG -


i'm on following

ubuntu 12.04 lts php 5.3.10-1ubuntu3.18 suhosin-patch (cli) imagemagick 6.6.9-7 gpl ghostscript 9.05 (2012-02-08)

my gs under /usr/bin

i'm converting continuously - pdf jpg each pdf page single image. worked first time 1-30 sets of pdf i'm getting error after 7 sets of pdf being complete

running php script in command line. after converting 5-7 sets of pdf jpg separate images (about 1000 jpg) i'm getting following error

php fatal error: uncaught exception 'imagickexception' message 'postscript delegate failed `../books/58/58.pdf': @ error/pdf.c/readpdfimage/663' in /var/www/mysite/public_html/admin/lib.php:10 stack trace: #0 /var/www/mysite/public_html/admin/lib.php(10): imagick->__construct('../books/58/58....') #1 /var/www/mysite/public_html/admin/test.php(118): include('/var/www/stagin...') #2 {main} thrown in /var/www/mysite/public_html/admin/lib.php on line 10

lib.php has script convert pdf jpg - code below

<?php $file_name = "../books/$book_id/$book_id".'.pdf'; mkdir("../books/$book_id/pages");  // strip document extension $file_name = basename($file_name, '.pdf');  // convert document // each page single image $img = new imagick("../books/$book_id/$book_id".'.pdf');  // set image resolution // determine num of pages $img->setresolution(300,300); $num_pages = $img->getnumberimages();  // convert pdf pages images for($i = 0;$i < $num_pages; $i++) { // set iterator postion $img->setiteratorindex($i); // set image format $img->setimageformat('jpeg'); // write images temp 'upload' folder $img->writeimage("../books/$book_id/pages/$i".'.jpg'); } $img->destroy();  ?>

after getting error stop converting, when run script again works 5-7 sets of pdf , stop again. can please tell me i'm missing here.

i appreciate kind help. thank in advance.

as @kens suggested, case calling ghostscript directly better, both faster, , not crash.

i suspect issue you're seeing resource being held open imagemagick, , @ point processing starts failing because there no more of resource available.

if wanted investigate that, strace tool with. calling gs directly allow on more important stuff.


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