Creating PDF thumbnails in PHP

pdf-thumbnail-php.md

Creating PDF thumbnails in PHP

Install Ghostscript

Download and install right version of ghostscript. In my case my PHP was x86 architecture, so I download Ghostscript 9.14 for Windows (32 bit).

Enable ImageMagick

Check, is imagick extension available and loaded.

This line should be present in your php.ini:

extension=php_imagick.dll

Also, check php_imagick.dll in PHP's ext directory.

PHP function

<?php
	function genPdfThumbnail($source, $target)
	{
		//$source = realpath($source);
		$target = dirname($source).DIRECTORY_SEPARATOR.$target;
		$im     = new Imagick($source."[0]"); // 0-first page, 1-second page
		$im->setImageColorspace(255); // prevent image colors from inverting
		$im->setimageformat("jpeg");
		$im->thumbnailimage(160, 120); // width and height
		$im->writeimage($target);
		$im->clear();
		$im->destroy();
	}

Call that function:

<?php
genPdfThumbnail('/uploads/my.pdf','my.jpg'); // generates /uploads/my.jpg

Thanks for this - proved very useful.

NOTES:

GHOSTSCRIPT use to extract image from PDF

https://stackoverflow.com/questions/52998331/imagemagick-security-policy-pdf-blocking-conversion

$ gs --version

If yes, just remove this whole following section from

$ sudo vim /etc/ImageMagick-6/policy.xml

<--- REMOVE THIS LINES --->
<policy domain="coder" rights="none" pattern="PS" />
<policy domain="coder" rights="none" pattern="PS2" />
<policy domain="coder" rights="none" pattern="PS3" />
<policy domain="coder" rights="none" pattern="EPS" />
<policy domain="coder" rights="none" pattern="PDF" />
<policy domain="coder" rights="none" pattern="XPS" />


$ sudo reboot 

Why not accomplish that directly with ImageMagic?

<?php

$im = new imagick('file.pdf[0]');

$im->setImageFormat('jpg');

header('Content-Type: image/jpeg');

echo $im;

?>

@MostafaAttia let's give it a try...

Last famous words... :)