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How to Add Product Images in Magento 2 Invoice PDF



 

We will do this task by creating custom module.

first, we will create basic files for creating custom module.

You can find complete module on Github Magelearn_Invoicepdf

Create folder in app/code/Magelearn/Invoicepdf

Add registration.php file in it:
<?php
/**
 * Copyright ©  All rights reserved.
 * See COPYING.txt for license details.
 */
use Magento\Framework\Component\ComponentRegistrar;

ComponentRegistrar::register(ComponentRegistrar::MODULE, 'Magelearn_Invoicepdf', __DIR__);
Add composer.json file in it:
{
    "name": "magelearn/module-invoicepdf",
    "description": "Magento2 Display Product images on invoice PDF Magento2",
    "type": "magento2-module",
    "license": "OSL-3.0",
    "authors": [
        {
            "email": "info@mage2gen.com",
            "name": "Mage2Gen"
        },
        {
            "email": "vijaymrami@gmail.com",
            "name": "vijay rami"
        }
    ],
    "minimum-stability": "dev",
    "require": {},
    "autoload": {
        "files": [
            "registration.php"
        ],
        "psr-4": {
            "Magelearn\\Invoicepdf\\": ""
        }
    }
}
Add etc/module.xml file:
<?xml version="1.0" ?>
<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:framework:Module/etc/module.xsd">
	<module name="Magelearn_Invoicepdf" setup_version="1.0.0"/>
</config>
Next we will override Magento\Sales\Model\Order\Pdf\Invoice with our custom module file.

Add etc/di.xml file:
<?xml version="1.0" ?>
<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:framework:ObjectManager/etc/config.xsd">
	<preference for="Magento\Sales\Model\Order\Pdf\Invoice" type="Magelearn\Invoicepdf\Sales\Model\Order\Pdf\Invoice"/>
</config>
Now Add our rewrite file Magelearn/Invoicepdf/Sales/Model/Order/Pdf/Invoice.php file:

Here we override files from vendor/magento/module-sales/Model/Order/Pdf/Invoice.php file.
(Change code were highlighted below.).

here we add our custom function insertImage to add images and change some color properties to change the background color of the table row.

Also, we have overide insertDocumentNumber function from /vendor/magento/module-sales/Model/Order/Pdf/AbstractPdf.php file. Which gives you clear idea about how to overrride abstract class function.

Here we used productRepositoryFactory in protected function insertImage and get product image. Please check how we passed it in __construct.
<?php
declare(strict_types=1);
namespace Magelearn\Invoicepdf\Sales\Model\Order\Pdf;

use Magento\Framework\DataObject;
use Magento\Sales\Model\Order\Pdf\Config;
use Magento\Framework\App\ObjectManager;
use Magento\Sales\Model\RtlTextHandler;
use Magento\Sales\Model\Order\Pdf\Invoice as InvoicePdf;

class Invoice extends InvoicePdf
{
    protected $_productRepositoryFactory;
    
    public function __construct(
        \Magento\Payment\Helper\Data $paymentData,
        \Magento\Framework\Stdlib\StringUtils $string,
        \Magento\Framework\App\Config\ScopeConfigInterface $scopeConfig,
        \Magento\Framework\Filesystem $filesystem,
        Config $pdfConfig,
        \Magento\Sales\Model\Order\Pdf\Total\Factory $pdfTotalFactory,
        \Magento\Sales\Model\Order\Pdf\ItemsFactory $pdfItemsFactory,
        \Magento\Framework\Stdlib\DateTime\TimezoneInterface $localeDate,
        \Magento\Framework\Translate\Inline\StateInterface $inlineTranslation,
        \Magento\Sales\Model\Order\Address\Renderer $addressRenderer,
        \Magento\Store\Model\StoreManagerInterface $storeManager,
        \Magento\Store\Model\App\Emulation $appEmulation,
        \Magento\Catalog\Api\ProductRepositoryInterfaceFactory $productRepositoryFactory,
        array $data = [],
        ?RtlTextHandler $rtlTextHandler = null
        ) {
            $this->appEmulation = $appEmulation;
            $this->rtlTextHandler = $rtlTextHandler ?: ObjectManager::getInstance()->get(RtlTextHandler::class);
            parent::__construct(
                $paymentData,
                $string,
                $scopeConfig,
                $filesystem,
                $pdfConfig,
                $pdfTotalFactory,
                $pdfItemsFactory,
                $localeDate,
                $inlineTranslation,
                $addressRenderer,
                $storeManager,
                $appEmulation,
                $data
                );
            $this->_productRepositoryFactory = $productRepositoryFactory;
    }
    
    /**
     * Return PDF document
     *
     * @param array|Collection $invoices
     * @return \Zend_Pdf
     */
    public function getPdf($invoices = [])
    {
        $this->_beforeGetPdf();
        $this->_initRenderer('invoice');
        
        $pdf = new \Zend_Pdf();
        $this->_setPdf($pdf);
        $style = new \Zend_Pdf_Style();
        $this->_setFontBold($style, 10);
        
        foreach ($invoices as $invoice) {
            if ($invoice->getStoreId()) {
                $this->appEmulation->startEnvironmentEmulation(
                    $invoice->getStoreId(),
                    \Magento\Framework\App\Area::AREA_FRONTEND,
                    true
                    );
                $this->_storeManager->setCurrentStore($invoice->getStoreId());
            }
            $page = $this->newPage();
            $order = $invoice->getOrder();
            /* Add image */
            $this->insertLogo($page, $invoice->getStore());
            /* Add address */
            $this->insertAddress($page, $invoice->getStore());
            /* Add head */
            $this->insertOrder(
                $page,
                $order,
                $this->_scopeConfig->isSetFlag(
                    self::XML_PATH_SALES_PDF_INVOICE_PUT_ORDER_ID,
                    \Magento\Store\Model\ScopeInterface::SCOPE_STORE,
                    $order->getStoreId()
                    )
                );
            /* Add document text and number */
            $this->insertDocumentNumber($page, __('Invoice # ') . $invoice->getIncrementId());
            /* Add table */
            $this->_drawHeader($page);
            /* Add body */
            foreach ($invoice->getAllItems() as $item) {
                if ($item->getOrderItem()->getParentItem()) {
                    continue;
                }
                /* Draw item */
                $this->_drawItem($item, $page, $order);
                /* Insert the product image. You can play with position here */
                $this->insertImage($item, 35, (int)($this->y-35), 95, (int)($this->y+15), $page);
                $page = end($pdf->pages);
            }
            /* Add totals */
            $this->insertTotals($page, $invoice);
            if ($invoice->getStoreId()) {
                $this->appEmulation->stopEnvironmentEmulation();
            }
        }
        $this->_afterGetPdf();
        return $pdf;
    }
    
    /**
     * Insert order to pdf page.
     *
     * @param \Zend_Pdf_Page $page
     * @param \Magento\Sales\Model\Order $obj
     * @param bool $putOrderId
     * @return void
     * @SuppressWarnings(PHPMD.CyclomaticComplexity)
     * @SuppressWarnings(PHPMD.NPathComplexity)
     * @SuppressWarnings(PHPMD.ExcessiveMethodLength)
     */
    protected function insertOrder(&$page, $obj, $putOrderId = true)
    {
        if ($obj instanceof \Magento\Sales\Model\Order) {
            $shipment = null;
            $order = $obj;
        } elseif ($obj instanceof \Magento\Sales\Model\Order\Shipment) {
            $shipment = $obj;
            $order = $shipment->getOrder();
        }
        
        $this->y = $this->y ? $this->y : 815;
        $top = $this->y;
        
        $page->setFillColor(new \Zend_Pdf_Color_GrayScale(1));
        $page->setLineColor(new \Zend_Pdf_Color_GrayScale(0.45));
        $page->drawRectangle(25, $top, 570, $top - 55);
        $page->setFillColor(new \Zend_Pdf_Color_GrayScale(0));
        $this->setDocHeaderCoordinates([25, $top, 570, $top - 55]);
        $this->_setFontRegular($page, 10);
        
        if ($putOrderId) {
            $page->drawText(__('Order # ') . $order->getRealOrderId(), 35, $top -= 30, 'UTF-8');
            $top +=15;
        }
        
        $top -=30;
        $page->drawText(
            __('Order Date: ') .
            $this->_localeDate->formatDate(
                $this->_localeDate->scopeDate(
                    $order->getStore(),
                    $order->getCreatedAt(),
                    true
                    ),
                \IntlDateFormatter::MEDIUM,
                false
                ),
            35,
            $top,
            'UTF-8'
            );
        
        $top -= 10;
        $page->setFillColor(new \Zend_Pdf_Color_Rgb(0.93, 0.92, 0.92));
        $page->setLineColor(new \Zend_Pdf_Color_GrayScale(0.5));
        $page->setLineWidth(0.5);
        $page->drawRectangle(25, $top, 275, $top - 25);
        $page->drawRectangle(275, $top, 570, $top - 25);
        
        /* Calculate blocks info */
        
        /* Billing Address */
        $billingAddress = $this->_formatAddress($this->addressRenderer->format($order->getBillingAddress(), 'pdf'));
        
        /* Payment */
        $paymentInfo = $this->_paymentData->getInfoBlock($order->getPayment())->setIsSecureMode(true)->toPdf();
        $paymentInfo = htmlspecialchars_decode($paymentInfo, ENT_QUOTES);
        $payment = explode('{{pdf_row_separator}}', $paymentInfo);
        foreach ($payment as $key => $value) {
            if (strip_tags(trim($value)) == '') {
                unset($payment[$key]);
            }
        }
        reset($payment);
        
        /* Shipping Address and Method */
        if (!$order->getIsVirtual()) {
            /* Shipping Address */
            $shippingAddress = $this->_formatAddress(
                $this->addressRenderer->format($order->getShippingAddress(), 'pdf')
                );
            $shippingMethod = $order->getShippingDescription();
        }
        
        $page->setFillColor(new \Zend_Pdf_Color_GrayScale(0));
        $this->_setFontBold($page, 12);
        $page->drawText(__('Sold to:'), 35, $top - 15, 'UTF-8');
        
        if (!$order->getIsVirtual()) {
            $page->drawText(__('Ship to:'), 285, $top - 15, 'UTF-8');
        } else {
            $page->drawText(__('Payment Method:'), 285, $top - 15, 'UTF-8');
        }
        
        $addressesHeight = $this->_calcAddressHeight($billingAddress);
        if (isset($shippingAddress)) {
            $addressesHeight = max($addressesHeight, $this->_calcAddressHeight($shippingAddress));
        }
        
        $page->setFillColor(new \Zend_Pdf_Color_GrayScale(1));
        $page->drawRectangle(25, $top - 25, 570, $top - 33 - $addressesHeight);
        $page->setFillColor(new \Zend_Pdf_Color_GrayScale(0));
        $this->_setFontRegular($page, 10);
        $this->y = $top - 40;
        $addressesStartY = $this->y;
        
        foreach ($billingAddress as $value) {
            if ($value !== '') {
                $text = [];
                foreach ($this->string->split($value, 45, true, true) as $_value) {
                    $text[] = $this->rtlTextHandler->reverseRtlText($_value);
                }
                foreach ($text as $part) {
                    $page->drawText(strip_tags(ltrim($part)), 35, $this->y, 'UTF-8');
                    $this->y -= 15;
                }
            }
        }
        
        $addressesEndY = $this->y;
        
        if (!$order->getIsVirtual()) {
            $this->y = $addressesStartY;
            foreach ($shippingAddress as $value) {
                if ($value !== '') {
                    $text = [];
                    foreach ($this->string->split($value, 45, true, true) as $_value) {
                        $text[] = $this->rtlTextHandler->reverseRtlText($_value);
                    }
                    foreach ($text as $part) {
                        $page->drawText(strip_tags(ltrim($part)), 285, $this->y, 'UTF-8');
                        $this->y -= 15;
                    }
                }
            }
            
            $addressesEndY = min($addressesEndY, $this->y);
            $this->y = $addressesEndY;
            
            $page->setFillColor(new \Zend_Pdf_Color_Rgb(0.93, 0.92, 0.92));
            $page->setLineWidth(0.5);
            $page->drawRectangle(25, $this->y, 275, $this->y - 25);
            $page->drawRectangle(275, $this->y, 570, $this->y - 25);
            
            $this->y -= 15;
            $this->_setFontBold($page, 12);
            $page->setFillColor(new \Zend_Pdf_Color_GrayScale(0));
            $page->drawText(__('Payment Method:'), 35, $this->y, 'UTF-8');
            $page->drawText(__('Shipping Method:'), 285, $this->y, 'UTF-8');
            
            $this->y -= 10;
            $page->setFillColor(new \Zend_Pdf_Color_GrayScale(1));
            
            $this->_setFontRegular($page, 10);
            $page->setFillColor(new \Zend_Pdf_Color_GrayScale(0));
            
            $paymentLeft = 35;
            $yPayments = $this->y - 15;
        } else {
            $yPayments = $addressesStartY;
            $paymentLeft = 285;
        }
        
        foreach ($payment as $value) {
            if (trim($value) != '') {
                //Printing "Payment Method" lines
                $value = preg_replace('/<br[^>]*>/i', "\n", $value);
                foreach ($this->string->split($value, 45, true, true) as $_value) {
                    $page->drawText(strip_tags(trim($_value)), $paymentLeft, $yPayments, 'UTF-8');
                    $yPayments -= 15;
                }
            }
        }
        
        if ($order->getIsVirtual()) {
            // replacement of Shipments-Payments rectangle block
            $yPayments = min($addressesEndY, $yPayments);
            $page->drawLine(25, $top - 25, 25, $yPayments);
            $page->drawLine(570, $top - 25, 570, $yPayments);
            $page->drawLine(25, $yPayments, 570, $yPayments);
            
            $this->y = $yPayments - 15;
        } else {
            $topMargin = 15;
            $methodStartY = $this->y;
            $this->y -= 15;
            
            foreach ($this->string->split($shippingMethod, 45, true, true) as $_value) {
                $page->drawText(strip_tags(trim($_value)), 285, $this->y, 'UTF-8');
                $this->y -= 15;
            }
            
            $yShipments = $this->y;
            $totalShippingChargesText = "("
                . __('Total Shipping Charges')
                . " "
                    . $order->formatPriceTxt($order->getShippingAmount())
                    . ")";
                    
                    $page->drawText($totalShippingChargesText, 285, $yShipments - $topMargin, 'UTF-8');
                    $yShipments -= $topMargin + 10;
                    
                    $tracks = [];
                    if ($shipment) {
                        $tracks = $shipment->getAllTracks();
                    }
                    if (count($tracks)) {
                        $page->setFillColor(new \Zend_Pdf_Color_Rgb(0.93, 0.92, 0.92));
                        $page->setLineWidth(0.5);
                        $page->drawRectangle(285, $yShipments, 510, $yShipments - 10);
                        $page->drawLine(400, $yShipments, 400, $yShipments - 10);
                        //$page->drawLine(510, $yShipments, 510, $yShipments - 10);
                        
                        $this->_setFontRegular($page, 9);
                        $page->setFillColor(new \Zend_Pdf_Color_GrayScale(0));
                        //$page->drawText(__('Carrier'), 290, $yShipments - 7 , 'UTF-8');
                        $page->drawText(__('Title'), 290, $yShipments - 7, 'UTF-8');
                        $page->drawText(__('Number'), 410, $yShipments - 7, 'UTF-8');
                        
                        $yShipments -= 20;
                        $this->_setFontRegular($page, 8);
                        foreach ($tracks as $track) {
                            $maxTitleLen = 45;
                            $endOfTitle = strlen($track->getTitle()) > $maxTitleLen ? '...' : '';
                            $truncatedTitle = substr($track->getTitle(), 0, $maxTitleLen) . $endOfTitle;
                            $page->drawText($truncatedTitle, 292, $yShipments, 'UTF-8');
                            $page->drawText($track->getNumber(), 410, $yShipments, 'UTF-8');
                            $yShipments -= $topMargin - 5;
                        }
                    } else {
                        $yShipments -= $topMargin - 5;
                    }
                    
                    $currentY = min($yPayments, $yShipments);
                    
                    // replacement of Shipments-Payments rectangle block
                    $page->drawLine(25, $methodStartY, 25, $currentY);
                    //left
                    $page->drawLine(25, $currentY, 570, $currentY);
                    //bottom
                    $page->drawLine(570, $currentY, 570, $methodStartY);
                    //right
                    
                    $this->y = $currentY;
                    $this->y -= 15;
        }
    }
    
    /**
     * Insert title and number for concrete document type
     *
     * @param  \Zend_Pdf_Page $page
     * @param  string $text
     * @return void
     */
    public function insertDocumentNumber(\Zend_Pdf_Page $page, $text)
    {
        $page->setFillColor(new \Zend_Pdf_Color_GrayScale(0));
        $this->_setFontRegular($page, 10);
        $docHeader = $this->getDocHeaderCoordinates();
        $page->drawText($text, 35, $docHeader[1] - 15, 'UTF-8');
    }
    
    /**
     * Draws the product image using the specified coordinates
     *
     * @param DataObject $item
     * @param int $x1
     * @param int $y1
     * @param int $x2
     * @param int $y2
     * @param \Zend_Pdf_Page &$page
     * @return bool
     */
    protected function insertImage($item, $x1, $y1, $x2, $y2, \Zend_Pdf_Page &$page)
    {
        try{
            $product = $this->_productRepositoryFactory->create()->getById($item->getProductId());
            $productImage = '/catalog/product' . $product->getData('thumbnail');
            $pdfImage = \Zend_Pdf_Image::imageWithPath($this->_mediaDirectory->getAbsolutePath($productImage));
            
            //Draw image to PDF
            $page->drawImage($pdfImage, $x1, $y1, $x2, $y2);
        }
        catch (\Exception $e) {
            return false;
        }
    }
}

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