Merge pull request #13 from alberto2perez/master

Do not compress or alter any image inside the pdf

Author: xthiago

composer.json

@@ -21,8 +21,8 @@
     },
     "require": {
         "php": ">=5.3.0",
-        "symfony/filesystem": "~2.3",
-        "symfony/process": "~2.3"
+        "symfony/filesystem": "~3.1",
+        "symfony/process": "~3.1"
     },
     "require-dev": {
         "phpunit/phpunit": "~4.5"

src/Converter/GhostscriptConverterCommand.php

@@ -22,7 +22,7 @@ class GhostscriptConverterCommand
     /**
      * @var Filesystem
      */
-    protected $baseCommand = 'gs -sDEVICE=pdfwrite -dCompatibilityLevel=%s -dPDFSETTINGS=/screen -dNOPAUSE -dQUIET -dBATCH -sOutputFile=%s %s';
+    protected $baseCommand = 'gs -sDEVICE=pdfwrite -dCompatibilityLevel=%s -dPDFSETTINGS=/screen -dNOPAUSE -dQUIET -dBATCH -dColorConversionStrategy=/LeaveColorUnchanged -dEncodeColorImages=false -dEncodeGrayImages=false -dEncodeMonoImages=false -dDownsampleMonoImages=false -dDownsampleGrayImages=false -dDownsampleColorImages=false -dAutoFilterColorImages=false -dAutoFilterGrayImages=false -dColorImageFilter=/FlateEncode -dGrayImageFilter=/FlateEncode  -sOutputFile=%s %s';
 
     public function __construct()
     {