ImageMagick, Imagick, and Ghostscript?

I. Overview of functions

ImageMagick is a third-party image processing software, the function is more powerful than GD. It is recommended that both are installed and do not conflict.

Imagick is an extension module in PHP that invokes the API provided by ImageMagick to perform the operation of the picture.

Ghostscript is a set of free software that is compiled based on the page description language of Adobe, PostScript, and Portable Document Format (PDF).
Ghostscript was originally sold in the PC market in the form of commercial software and was called "Goscript". But because the speed is too slow (half an hour edition A4), the sales are very poor. Later, the conscientious buyer bought the copyright, and changed in the development of Linux, became today's Ghostscript.
Migrated from Linux to other operating systems, such as other Unix, Mac OS X, VMS, Windows, OS/2, and Mac OS Classic.

ImageMagick cannot directly convert a PDF document to a picture, you need to use the Gostscript Package

Second, the installation method

1. Compile and install ImageMagick

# Tar XF imagemagick-6.8.9-9.tar.gz# cd imagemagick-6.8.9-9#./configure--prefix=/usr/local/imagemagick# make# make After installing the installation, remember to configure the./convert Environment variables

2. Compile and install Imagick

# tar-xf imagick-3.2.0rc1.tgz# cd imagick-3.2.0rc1#/usr/local/php/bin/phpize#./configure--with-php-config=/usr/ Local/php/bin/php-config--with-imagick=/usr/local/imagemagick# make && make install

3. Compile and install Ghostscript

# Tar XF ghostscript-9.02.tar.gz# cd ghostscript-9.02#./configure# make# Make install recommendation Ghostscript use Yum installation, Because there are some font libraries that are dependent on package # Yum-y Install Ghostscrip

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Iii. PHP Load Imagick module

1. PHP Load Imagick dynamic module

# echo ' extension= ' imagick.so ' >>/usr/locla/php/etc/php.ini# service php-fpm restart

2. View Phpinfo page

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Iv. use of the ImageMagick command line

Note: Only install ImageMagick to install Ghostscript effect

Manually use commands to convert pictures to pictures, images to PDFs, etc., but not to convert PDFs to images, the command is as follows:

[Email protected] opt]# lsdocument.pdf imagice.png[[email protected] opt]#/usr/local/imagemagick/bin/convert Imagice.png Nihao_tupian.jpg[[email protected] opt]# lsdocument.pdf imagice.png nihao_tupian.jpg[[email protected] opt ]#/usr/local/imagemagick/bin/convert document.pdf nihao_wendang.pdfconvert:no images defined ' nihao_wendang.pdf ' @ error/convert.c/convertimagecommand/3210. [Email protected] opt]# lsdocument.pdf imagice.png nihao_tupian.jpg

Effects after installation of Ghostscript

[Email protected] opt]#/usr/local/imagemagick/bin/convert document.pdf nihao_wendang.pdfconvert:no images defined ' Nihao_wendang.pdf ' @ error/convert.c/convertimagecommand/3210[[email protected] opt]# yum-y install ghostscript[[ Email protected] opt]#/usr/local/imagemagick/bin/convert document.pdf nihao_wendang.pdf[[email protected] opt]# Lsdocument.pdf imagice.png nihao_tupian.jpg nihao_wendang.pdf

V. Invocation of PHP Program

1, PHP program call Imagick Program

<?php         $pdfFile =$_get[' pdf '];         if (Empty ($pdfFile)) {             $path = '/www/111111.pdf ';                 var_dump (Is_readable ($path));              $pdfFile = ' 111111.pdf ';        }else{              $path = '/www/yanjiuyuan/pdf/'. $pdfFile;         }        if (!file_exists ($path)) {                 echo  "No";         }         $Return =array ();          $filelen =strlen ($pdfFile);         $strFileName = substr ($pdfFile, 0, $filelen-4);         $fp  =  @fopen   (   "./pdf/". $strFileName. ". TXT ",  ' r '  );        if  ($FP)  {             $arr  = unserialize  ( fgets  (  $FP  )  );            $Return = $arr;            fclose  (  $fp  );         }else{             $IM  = new imagick ();             $IM- >setresolution (150,150);             $IM setcomPressionquality (;            ) $IM->readimage ($path);            foreach  ($IM  as   $Key  =>  $Var)  {                  $Var->setimageformat (' png ');                  $Filename  =  '/www/yanjiuyuan/pdf/'  . time ( )  . uniqid ()  .  '. png ';                 if  ($Var->writeimage ($Filename)  == true)  {                    //  $Return [] =  $Filename;                  &nBsp;  array_push ($Return, $Filename);                 }            }              $fp  = fopen  ("/www/ yanjiuyuan/pdf/". $strFileName.". TXT ",  ' W '  );            fwrite  (   $FP, serialize  (  $Return  )  ;             fclose  (  $fp  );        }          $imageHtml =array ();         foreach ($Return  as  $key + $value) {              $strNumber =strlen ($value);            &nbSP; $imPath =substr ($value, $strNumber -27, $strNumber);              $url = ' www/yanjiuyuan/pdf/'. $imPath;              $imageHtml []= $url;        }        print_r ($imageHtml);    ?>

2. Page Access URL

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3. View the generated pictures

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ImageMagick, Imagick, and Ghostscript?