diff --git a/README.MD b/README.MD
index 499d426..82f41f8 100644
--- a/README.MD
+++ b/README.MD
@@ -2,12 +2,14 @@
 [![Latest Stable Version](https://poser.pugx.org/yetiforce/yetiforcepdf/v/stable)](https://packagist.org/packages/yetiforce/yetiforcepdf)
 [![Build Status](https://travis-ci.org/YetiForceCompany/YetiForcePDF.svg?branch=developer)](https://travis-ci.org/YetiForceCompany/YetiForcePDF)
 [![Scrutinizer Code Quality](https://scrutinizer-ci.com/g/YetiForceCompany/YetiForcePDF/badges/quality-score.png?b=master)](https://scrutinizer-ci.com/g/YetiForceCompany/YetiForcePDF/?branch=master)
-[![Codacy Badge](https://api.codacy.com/project/badge/Grade/b2e8645f5091496089ed203d05a05d61)](https://app.codacy.com/app/mariuszkrzaczkowski/YetiForcePDF?utm_source=github.com&utm_medium=referral&utm_content=YetiForceCompany/YetiForcePDF&utm_campaign=Badge_Grade_Settings)
 [![Maintainability](https://api.codeclimate.com/v1/badges/af478ddd07cf7278841a/maintainability)](https://codeclimate.com/github/YetiForceCompany/YetiForcePDF/maintainability)
 
 ## PDF generation library for PHP
 The best library in the world to generate PDF from HTML
 
+## Issues & bugs
+Report errors related to PDF in https://github.com/YetiForceCompany/YetiForceCRM/issues
+
 ## Basic usage (for more take a look at examples folder)
 
 ```php
@@ -196,3 +198,12 @@ When you want to place page number (in header or footer for example) you can do
 ## License
 
 Distributed under the MIT license. See LICENSE for details.
+
+## 👥 Contributors
+
+This project exists thanks to all the people who contribute. 
+
+<a href="https://github.com/YetiForceCompany/YetiForcePDF/graphs/contributors">
+<img src="https://contrib.rocks/image?repo=YetiForceCompany/YetiForcePDF" />
+</a>
+
diff --git a/composer.json b/composer.json
index 1ab74c6..f6b4fc1 100644
--- a/composer.json
+++ b/composer.json
@@ -28,7 +28,7 @@
     "phenx/php-font-lib": "^0.5",
     "guzzlehttp/guzzle": "^7",
     "composer/ca-bundle": "^1",
-    "milon/barcode": "^9",
+    "milon/barcode": "^11",
     "sabberworm/php-css-parser": "^8"
   },
   "autoload": {
diff --git a/lib/Document.php b/lib/Document.php
index 4e8da32..5ae821e 100644
--- a/lib/Document.php
+++ b/lib/Document.php
@@ -14,6 +14,8 @@
 
 namespace YetiForcePDF;
 
+use Exception;
+use YetiForcePDF\Html\Parser;
 use YetiForcePDF\Layout\FooterBox;
 use YetiForcePDF\Layout\HeaderBox;
 use YetiForcePDF\Layout\WatermarkBox;
@@ -31,34 +33,40 @@ class Document
 	 * @var int
 	 */
 	protected $actualId = 0;
+
 	/**
 	 * Main output buffer / content for pdf file.
 	 *
 	 * @var string
 	 */
 	protected $buffer = '';
+
 	/**
 	 * Main entry point - root element.
 	 *
 	 * @var \YetiForcePDF\Catalog
 	 */
 	protected $catalog;
+
 	/**
 	 * Pages dictionary.
 	 *
 	 * @var Pages
 	 */
 	protected $pagesObject;
+
 	/**
 	 * Current page object.
 	 *
 	 * @var Page
 	 */
 	protected $currentPageObject;
+
 	/**
 	 * @var string default page format
 	 */
 	protected $defaultFormat = 'A4';
+
 	/**
 	 * @var string default page orientation
 	 */
@@ -68,6 +76,7 @@ class Document
 	 * @var Page[] all pages in the document
 	 */
 	protected $pages = [];
+
 	/**
 	 * Default page margins.
 	 *
@@ -79,68 +88,82 @@ class Document
 		'right' => 40,
 		'bottom' => 40,
 	];
+
 	/**
 	 * All objects inside document.
 	 *
 	 * @var \YetiForcePDF\Objects\PdfObject[]
 	 */
 	protected $objects = [];
+
 	/**
-	 * @var \YetiForcePDF\Html\Parser
+	 * @var Parser
 	 */
 	protected $htmlParser;
+
 	/**
 	 * Fonts data.
 	 *
 	 * @var array
 	 */
 	protected $fontsData = [];
+
 	/**
 	 * @var array
 	 */
 	protected $fontInstances = [];
+
 	/**
 	 * Actual font id.
 	 *
 	 * @var int
 	 */
 	protected $actualFontId = 0;
+
 	/**
 	 * Actual graphic state id.
 	 *
 	 * @var int
 	 */
 	protected $actualGraphicStateId = 0;
+
 	/**
 	 * @var bool
 	 */
 	protected $debugMode = false;
+
 	/**
 	 * @var HeaderBox|null
 	 */
 	protected $header;
+
 	/**
 	 * @var FooterBox|null
 	 */
 	protected $footer;
+
 	/**
 	 * @var WatermarkBox|null
 	 */
 	protected $watermark;
+
 	/**
 	 * @var Meta
 	 */
 	protected $meta;
+
 	/**
 	 * @var bool
 	 */
 	protected $parsed = false;
+
 	/**
 	 * Characters int values cache for fonts.
 	 *
 	 * @var array
 	 */
-	protected $ordCache = [];
+	public $ordCache = [];
+
 	/**
 	 * Css selectors like classes ids.
 	 *
@@ -444,7 +467,7 @@ public function getFontData(string $family, string $weight, string $style)
 	 */
 	public static function addFonts(array $fonts)
 	{
-		return \YetiForcePDF\Objects\Font::loadFromArray($fonts);
+		\YetiForcePDF\Objects\Font::loadFromArray($fonts);
 	}
 
 	/**
@@ -765,14 +788,19 @@ public function removeObject(PdfObject $object): self
 	 * Load html string.
 	 *
 	 * @param string $html
-	 * @param string $inputEncoding
+	 * @param string $fromEncoding
 	 *
 	 * @return $this
+	 * @throws Exception
 	 */
-	public function loadHtml(string $html, string $inputEncoding = 'UTF-8')
+	public function loadHtml(string $html, string $fromEncoding = 'UTF-8'): self
 	{
-		$this->htmlParser = (new \YetiForcePDF\Html\Parser())->setDocument($this)->init();
-		$this->htmlParser->loadHtml($html, $inputEncoding);
+		if ($fromEncoding === '') {
+			throw new Exception('Encoding can not be empty');
+		}
+
+		$this->htmlParser = (new Parser())->setDocument($this)->init();
+		$this->htmlParser->loadHtml($html, $fromEncoding);
 
 		return $this;
 	}
@@ -872,10 +900,13 @@ public function parse()
 	 */
 	public function render(): string
 	{
-		$xref = $this->buffer = '';
+		$xref = '';
+		$this->buffer = '';
+
 		$this->buffer .= $this->getDocumentHeader();
 		$this->parse();
 		$objectSize = 0;
+
 		foreach ($this->objects as $object) {
 			if (\in_array($object->getBasicType(), ['Dictionary', 'Stream', 'Array'])) {
 				$xref .= sprintf("%010d 00000 n \n", \strlen($this->buffer));
@@ -883,23 +914,27 @@ public function render(): string
 				++$objectSize;
 			}
 		}
+
 		$offset = \strlen($this->buffer);
 		$this->buffer .= implode("\n", [
 			'xref',
-			'0 ' . ($objectSize + 1),
+			'0 ' . $objectSize,
 			'0000000000 65535 f ',
 			$xref,
 		]);
+
 		$trailer = (new \YetiForcePDF\Objects\Trailer())
 			->setDocument($this)->setRootObject($this->catalog)->setSize($objectSize);
+
 		$this->buffer .= $trailer->render() . "\n";
-		// $this->buffer .= implode("\n", [
-		// 	'startxref',
-		// 	$offset,
-		// 	'',
-		// ]);
+		$this->buffer .= implode("\n", [
+			'startxref',
+			$offset,
+			'',
+		]);
 		$this->buffer .= $this->getDocumentFooter();
 		$this->removeObject($trailer);
+
 		return $this->buffer;
 	}
 
@@ -910,7 +945,7 @@ public function render(): string
 	 *
 	 * @return array
 	 */
-	public function getCssSelectorRules(string $selector)
+	public function getCssSelectorRules(string $selector): array
 	{
 		$rules = [];
 		foreach (explode(' ', $selector) as $className) {
diff --git a/lib/Html/Parser.php b/lib/Html/Parser.php
index 7b38e7d..537b763 100644
--- a/lib/Html/Parser.php
+++ b/lib/Html/Parser.php
@@ -1,6 +1,7 @@
 <?php
 
 declare(strict_types=1);
+
 /**
  * Parser class.
  *
@@ -13,25 +14,29 @@
 
 namespace YetiForcePDF\Html;
 
+use YetiForcePDF\Base;
 use YetiForcePDF\Layout\PageGroupBox;
 
 /**
  * Class Parser.
  */
-class Parser extends \YetiForcePDF\Base
+class Parser extends Base
 {
 	/**
 	 * @var \DOMDocument
 	 */
 	protected $domDocument;
+
 	/**
 	 * @var string
 	 */
 	protected $html = '';
+
 	/**
 	 * @var array page groups with html content divided
 	 */
 	protected $htmlPageGroups = [];
+
 	/**
 	 * @var array
 	 */
@@ -57,13 +62,19 @@ protected function cleanUpHtml(string $html)
 	 * @param string $html
 	 * @param string $fromEncoding
 	 *
-	 * @return \YetiForcePDF\Html\Parser
+	 * @return Parser
 	 */
-	public function loadHtml(string $html, string $fromEncoding = ''): self
+	public function loadHtml(string $html, string $fromEncoding): self
 	{
-		$html = htmlspecialchars_decode($html, ENT_HTML5);
+		$this->html = htmlspecialchars_decode($html, ENT_HTML5);
 		$this->html = $this->cleanUpHtml($html);
-		$this->html = mb_convert_encoding($this->html, 'HTML-ENTITIES', $fromEncoding);
+
+		// 0x80 - start of unicode range
+		// 0x10FFFF - end of unicode range
+		// 0 - do not ommit any unicode char
+		// ~0 - negated 0 - convert negation of nothing (so convert all)
+		$this->html = mb_encode_numericentity($this->html, [0x80, 0x10FFFF, 0, ~0], $fromEncoding);
+
 		return $this;
 	}
 
@@ -72,7 +83,7 @@ public function loadHtml(string $html, string $fromEncoding = ''): self
 	 *
 	 * @return string
 	 */
-	public function getHtml()
+	public function getHtml(): string
 	{
 		return $this->html;
 	}
diff --git a/lib/Layout/TextBox.php b/lib/Layout/TextBox.php
index 22690ee..080417b 100644
--- a/lib/Layout/TextBox.php
+++ b/lib/Layout/TextBox.php
@@ -1,6 +1,7 @@
 <?php
 
 declare(strict_types=1);
+
 /**
  * TextBox class.
  *
@@ -20,10 +21,12 @@
  */
 class TextBox extends ElementBox implements BoxInterface
 {
+	public bool $drawTextOutline = false;
+
 	/**
 	 * @var string
 	 */
-	protected $text;
+	protected string $text;
 
 	/**
 	 * {@inheritdoc}
@@ -31,10 +34,12 @@ class TextBox extends ElementBox implements BoxInterface
 	public function init()
 	{
 		parent::init();
+
 		$this->style = (new \YetiForcePDF\Style\Style())
 			->setDocument($this->document)
 			->setBox($this)
 			->init();
+
 		return $this;
 	}
 
@@ -45,7 +50,7 @@ public function init()
 	 *
 	 * @return $this
 	 */
-	public function setText(string $text)
+	public function setText(string $text): self
 	{
 		$this->text = $text;
 		return $this;
@@ -56,7 +61,7 @@ public function setText(string $text)
 	 *
 	 * @return string
 	 */
-	public function getText()
+	public function getText(): string
 	{
 		return $this->text;
 	}
@@ -66,9 +71,10 @@ public function getText()
 	 *
 	 * @return $this
 	 */
-	public function measureWidth()
+	public function measureWidth(): self
 	{
 		$this->getDimensions()->setWidth($this->getStyle()->getFont()->getTextWidth($this->getText()));
+
 		return $this;
 	}
 
@@ -77,9 +83,10 @@ public function measureWidth()
 	 *
 	 * @return $this
 	 */
-	public function measureHeight()
+	public function measureHeight(): self
 	{
 		$this->getDimensions()->setHeight($this->getStyle()->getFont()->getTextHeight($this->getText()));
+
 		return $this;
 	}
 
@@ -88,10 +95,11 @@ public function measureHeight()
 	 *
 	 * @return $this
 	 */
-	public function measureOffset()
+	public function measureOffset(): self
 	{
 		$this->getOffset()->setLeft('0');
 		$this->getOffset()->setTop('0');
+
 		return $this;
 	}
 
@@ -100,11 +108,12 @@ public function measureOffset()
 	 *
 	 * @return $this
 	 */
-	public function measurePosition()
+	public function measurePosition(): self
 	{
 		$parent = $this->getParent();
 		$this->getCoordinates()->setX(Math::add($parent->getCoordinates()->getX(), $this->getOffset()->getLeft()));
 		$this->getCoordinates()->setY(Math::add($parent->getCoordinates()->getY(), $this->getOffset()->getTop()));
+
 		return $this;
 	}
 
@@ -139,6 +148,7 @@ public function getInstructions(): string
 		$textHeight = $style->getFont()->getTextHeight();
 		$textContent = $this->document->filterText($this->getText());
 		$transform = $style->getTransformations($pdfX, $baseLineY);
+
 		$element = [
 			'q',
 			$graphicStateStr,
@@ -150,7 +160,7 @@ public function getInstructions(): string
 			'ET',
 			'Q',
 		];
-		$this->drawTextOutline = false;
+
 		if ($this->drawTextOutline) {
 			$element = array_merge($element, [
 				'q',
@@ -162,6 +172,7 @@ public function getInstructions(): string
 				'Q',
 			]);
 		}
+
 		return implode("\n", $element);
 	}
 }
diff --git a/lib/Page.php b/lib/Page.php
index 8dd63f5..efcb9f8 100644
--- a/lib/Page.php
+++ b/lib/Page.php
@@ -1147,7 +1147,7 @@ protected function divideTable(Box $tableChild, string $yPos, Box $cloned)
 						if ($row->getRowSpanUp() > 0) {
 							$move = [];
 							// copy spanned rows too
-							for ($i = $row->getRowSpanUp(); $i >= 0; --$i) {
+							for ($i = $row->getRowSpanUp(); $i > 0; --$i) {
 								$spannedRowIndex = $rowIndex - $i;
 								$move[] = $tableRowGroup->getChildren()[$spannedRowIndex];
 							}
diff --git a/lib/Style/Normalizer/Border.php b/lib/Style/Normalizer/Border.php
index 8f18cea..13d8759 100644
--- a/lib/Style/Normalizer/Border.php
+++ b/lib/Style/Normalizer/Border.php
@@ -25,8 +25,8 @@ public function normalize($ruleValue, string $ruleName = ''): array
 		}
 		$matches = [];
 		preg_match('/([0-9]+)([a-z]+)\s+(solid|dashed|dotted|none)\s+(.+)?/ui', $ruleValue, $matches);
-		$originalSize = $matches[1];
-		$originalUnit = $matches[2];
+		$originalSize = $matches[1] ?? 0;
+		$originalUnit = $matches[2] ?? 0;
 		if (isset($matches[3])) {
 			$style = $matches[3];
 		} else {