PDF to Images generate - php

Question

I have PDF with 25 pages, I want to convert it into images with all pages.
My code:
First I have found number of pages.
$tmpfname= 'test_pdf.pdf';
$path = "/var/www/my_path";
$numberOfPages = $this->count_pages($tmpfname);
$numberOfPages = intval($numberOfPages); // Number of pages eg.25
Loop for convert pdf to images
for($i=0;$i<=$numberOfPages;$i++){
$im = new imagick( $tmpfname.'['.$i.']' );
$im->setCompression(Imagick::COMPRESSION_JPEG);
$im->resizeImage('1024','800', Imagick::FILTER_UNDEFINED, 0.9, true);
$im->setCompressionQuality(100);
$im->setImageFormat('jpeg');
$im->writeImage($path.'/'.$i.'.jpg');
$im->clear();
$im->destroy();
}
Function for find number of pages
function count_pages($pdfname) {
$pdftext = file_get_contents($pdfname);
$num = preg_match_all("/\/Page\W/",$pdftext, $dummy);
return $num;
}
PDF uploaded ok, and also converted images from PDF. But got this type of error after completed process:
Fatal error: Uncaught exception 'ImagickException' with message
'Postscript delegate failed /var/www/php/flipbook/uploads/flipbooks/61/test_pdf.pdf':
# error/pdf.c/ReadPDFImage/663' in /var/www/php/flipbook/application/controllers/admin/flipbooks.php:83
Stack trace: #0 /var/www/php/flipbook/application/controllers/admin/flipbooks.php(83):
Imagick->__construct('/var/www/php/fl...')
#1 [internal function]: Flipbooks->create()
#2 /var/www/php/flipbook/system/core/CodeIgniter.php(359): call_user_func_array(Array, Array)
#3 /var/www/php/flipbook/index.php(210): require_once('/var/www/php/fl...')
#4 {main} thrown in /var/www/php/flipbook/application/controllers/admin/flipbooks.php on line 83
Any buddy can help me very appreciate...

Answer 1

If nothing else, you have an off by one error:
for($i=0;$i<=$numberOfPages;$i++){
//..
}
This attempts to print numberOfPages + 1 pages as the index starts at zero.

Answer 2

I got the perfect solution from here
My new code
$tmpfname= 'test_pdf.pdf';
$path = "/var/www/my_path";
$numberOfPages = $this->count_pages($tmpfname);
$numberOfPages = intval($numberOfPages); // Number of pages eg.25
// Saving every page of a PDF separately as a JPG thumbnail
$images = new Imagick("test_pdf.pdf");
foreach($images as $i=>$image) {
// Providing 0 forces thumbnail Image to maintain aspect ratio
$image->thumbnailImage(1024,0);
$image->writeImage($path.'/'.$i.'.jpg');
}
$images->clear();
function count_pages($pdfname) {
$pdftext = file_get_contents($pdfname);
$num = preg_match_all("/\/Page\W/",$pdftext, $dummy);
return $num;
}