Upgrade to mPDF 7.0+

Closes #144

CHANGELOG.md

@@ -16,6 +16,7 @@ and this project adheres to [Semantic Versioning](http://semver.org/).
 
 - Merge data-validations to reduce written worksheet size - @billblume [#131](https://github.com/PHPOffice/PhpSpreadSheet/issues/131)
 - Throws exception if a XML file is invalid - @GreatHumorist [#222](https://github.com/PHPOffice/PhpSpreadsheet/pull/222)
+- Upgrade to mPDF 7.0+ - [#144](https://github.com/PHPOffice/PhpSpreadsheet/issues/144)
 
 ### Fixed
 

composer.json

@@ -39,12 +39,12 @@
         "psr/simple-cache": "^1.0"
     },
     "require-dev": {
-        "mpdf/mpdf": "^6.1",
         "tecnickcom/tcpdf": "^6.2",
         "squizlabs/php_codesniffer": "^2.7",
         "phpunit/phpunit": "^5.7",
         "friendsofphp/php-cs-fixer": "^2.0",
-        "dompdf/dompdf": "^0.8.0"
+        "dompdf/dompdf": "^0.8.0",
+        "mpdf/mpdf": "7.0.0-RC1@dev"
     },
     "suggest": {
         "ext-gd": "Required for exact column width autocalculation",

composer.lock

@@ -4,7 +4,7 @@
         "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#composer-lock-the-lock-file",
         "This file is @generated automatically"
     ],
-    "content-hash": "81b6f3fcd32849e29ea13dd37c9af17f",
+    "content-hash": "4361e04d6b452f3df8a46484e1728fe1",
     "packages": [
         {
             "name": "psr/simple-cache",
@@ -283,34 +283,49 @@
         },
         {
             "name": "mpdf/mpdf",
-            "version": "v6.1.3",
+            "version": "v7.0.0-RC1",
             "source": {
                 "type": "git",
                 "url": "https://github.com/mpdf/mpdf.git",
-                "reference": "7f138bf7508eac895ac2c13d2509b056ac7e7e97"
+                "reference": "ef766b1a3e183d78fac39694ecefb41ce391bbd1"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/mpdf/mpdf/zipball/7f138bf7508eac895ac2c13d2509b056ac7e7e97",
+                "url": "https://api.github.com/repos/mpdf/mpdf/zipball/ef766b1a3e183d78fac39694ecefb41ce391bbd1",
-                "reference": "7f138bf7508eac895ac2c13d2509b056ac7e7e97",
+                "reference": "ef766b1a3e183d78fac39694ecefb41ce391bbd1",
                 "shasum": ""
             },
             "require": {
+                "ext-gd": "*",
                 "ext-mbstring": "*",
-                "php": ">=5.4.0",
+                "paragonie/random_compat": "^2.0",
+                "php": "^5.6 || ~7.0.0 || ~7.1.0 || ~7.2.0",
+                "psr/log": "^1.0",
                 "setasign/fpdi": "1.6.*"
             },
             "require-dev": {
-                "phpunit/phpunit": "^4.7"
+                "mockery/mockery": "^0.9.5",
+                "phpunit/phpunit": "^5.0",
+                "squizlabs/php_codesniffer": "^2.7.0",
+                "tracy/tracy": "^2.4"
             },
             "suggest": {
+                "ext-bcmath": "Needed for generation of some types of barcodes",
+                "ext-xml": "Needed mainly for SVG manipulation",
                 "ext-zlib": "Needed for compression of embedded resources, such as fonts"
             },
             "type": "library",
+            "extra": {
+                "branch-alias": {
+                    "dev-development": "7.0-dev"
+                }
+            },
             "autoload": {
-                "classmap": [
+                "psr-4": {
-                    "mpdf.php",
+                    "Mpdf\\": "src/"
-                    "classes"
+                },
+                "files": [
+                    "src/functions.php"
                 ]
             },
             "notification-url": "https://packagist.org/downloads/",
@@ -318,19 +333,23 @@
                 "GPL-2.0"
             ],
             "authors": [
+                {
+                    "name": "Matěj Humpál",
+                    "role": "Developer, maintainer"
+                },
                 {
                     "name": "Ian Back",
-                    "role": "Developer"
+                    "role": "Developer (retired)"
                 }
             ],
             "description": "A PHP class to generate PDF files from HTML with Unicode/UTF-8 and CJK support",
-            "homepage": "http://mpdf.github.io",
+            "homepage": "https://mpdf.github.io",
             "keywords": [
                 "pdf",
                 "php",
                 "utf-8"
             ],
-            "time": "2016-12-12T10:42:18+00:00"
+            "time": "2017-09-26T12:00:17+00:00"
         },
         {
             "name": "myclabs/deep-copy",
@@ -374,6 +393,54 @@
             ],
             "time": "2017-01-26T22:05:40+00:00"
         },
+        {
+            "name": "paragonie/random_compat",
+            "version": "v2.0.11",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/paragonie/random_compat.git",
+                "reference": "5da4d3c796c275c55f057af5a643ae297d96b4d8"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/paragonie/random_compat/zipball/5da4d3c796c275c55f057af5a643ae297d96b4d8",
+                "reference": "5da4d3c796c275c55f057af5a643ae297d96b4d8",
+                "shasum": ""
+            },
+            "require": {
+                "php": ">=5.2.0"
+            },
+            "require-dev": {
+                "phpunit/phpunit": "4.*|5.*"
+            },
+            "suggest": {
+                "ext-libsodium": "Provides a modern crypto API that can be used to generate random bytes."
+            },
+            "type": "library",
+            "autoload": {
+                "files": [
+                    "lib/random.php"
+                ]
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "authors": [
+                {
+                    "name": "Paragon Initiative Enterprises",
+                    "email": "security@paragonie.com",
+                    "homepage": "https://paragonie.com"
+                }
+            ],
+            "description": "PHP 5.x polyfill for random_bytes() and random_int() from PHP 7",
+            "keywords": [
+                "csprng",
+                "pseudorandom",
+                "random"
+            ],
+            "time": "2017-09-27T21:40:39+00:00"
+        },
         {
             "name": "phenx/php-font-lib",
             "version": "0.5",
@@ -1650,16 +1717,16 @@
         },
         {
             "name": "setasign/fpdi",
-            "version": "1.6.1",
+            "version": "1.6.2",
             "source": {
                 "type": "git",
                 "url": "https://github.com/Setasign/FPDI.git",
-                "reference": "5b899b2b41463bf261aa69840fd30b50950a500c"
+                "reference": "a6ad58897a6d97cc2d2cd2adaeda343b25a368ea"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/Setasign/FPDI/zipball/5b899b2b41463bf261aa69840fd30b50950a500c",
+                "url": "https://api.github.com/repos/Setasign/FPDI/zipball/a6ad58897a6d97cc2d2cd2adaeda343b25a368ea",
-                "reference": "5b899b2b41463bf261aa69840fd30b50950a500c",
+                "reference": "a6ad58897a6d97cc2d2cd2adaeda343b25a368ea",
                 "shasum": ""
             },
             "suggest": {
@@ -1695,7 +1762,7 @@
                 "fpdi",
                 "pdf"
             ],
-            "time": "2015-11-30T10:53:14+00:00"
+            "time": "2017-05-11T14:25:49+00:00"
         },
         {
             "name": "squizlabs/php_codesniffer",
@@ -2553,7 +2620,9 @@
     ],
     "aliases": [],
     "minimum-stability": "stable",
-    "stability-flags": [],
+    "stability-flags": {
+        "mpdf/mpdf": 20
+    },
     "prefer-stable": false,
     "prefer-lowest": false,
     "platform": {

src/PhpSpreadsheet/Writer/Pdf/MPDF.php

@@ -77,7 +77,7 @@ class MPDF extends Core implements IWriter
         }
 
         //  Create PDF
-        $pdf = new \mPDF();
+        $pdf = new \Mpdf\Mpdf();
         $ortmp = $orientation;
         $pdf->_setPageSize(strtoupper($paperSize), $ortmp);
         $pdf->DefOrientation = $orientation;