How to Compress Sales Invoice PDF Size in Magento 2

In this tutorial, Today I will explain to how to compress sales invoice pdf size in Magento 2. In default Magento, You can see invoice pdf file size is approx 3 to 4 MB size. Now, if you want to compress pdf size and make file size around 5 to 20 KB then, you need to follow this below steps.

For that, You need to override Magento\Sales\Model\Order\Pdf\Invoice class in your custom module.

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1) Let’s assume that you have created simple module. Now, create di.xml file at app/code/RH/Helloworld/etc/ and paste the below code :

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<?xml version="1.0"?>
<!--
/**
 * Created By : Rohan Hapani
 */
-->
<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="RH\Helloworld\Model\Sales\Order\Pdf\Invoice" />
</config>

2) After that, Create Invoice.php file at app/code/RH/Helloworld/Model/Sales/Order/Pdf/ and paste the below code :

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<?php
/**
 * Created By : Rohan Hapani
 */
namespace RH\Helloworld\Model\Sales\Order\Pdf;

class Invoice extends \Magento\Sales\Model\Order\Pdf\Invoice
{
    /**
     * Set Font as Regular
     *
     * @param  \Zend_Pdf_Page $object
     * @param  int $size
     * @return \Zend_Pdf_Resource_Font
     */
    protected function _setFontRegular($object, $size = 7)
    {
        $font = \Zend_Pdf_Font::fontWithName(\Zend_Pdf_Font::FONT_TIMES);
        $object->setFont($font, $size);
        return $font;
    }

    /**
     * Set Font as Bold
     *
     * @param  \Zend_Pdf_Page $object
     * @param  int $size
     * @return \Zend_Pdf_Resource_Font
     */
    protected function _setFontBold($object, $size = 7)
    {
        $font = \Zend_Pdf_Font::fontWithName(\Zend_Pdf_Font::FONT_TIMES_BOLD);
        $object->setFont($font, $size);
        return $font;
    }

    /**
     * Set Font as Italic
     *
     * @param  \Zend_Pdf_Page $object
     * @param  int $size
     * @return \Zend_Pdf_Resource_Font
     */
    protected function _setFontItalic($object, $size = 7)
    {
        $font = \Zend_Pdf_Font::fontWithName(\Zend_Pdf_Font::FONT_TIMES_ITALIC);
        $object->setFont($font, $size);
        return $font;
    }
}

That’s it !!!

PDF file will be compress successfully.

For Shipment and Creditmemo PDF, you can follow this same code. You just need to add override other files.

For Shipment : \Magento\Sales\Model\Order\Pdf\Shipment
For Creditmemo : \Magento\Sales\Model\Order\Pdf\Creditmemo

I hope this blog is easy to understand about how to compress sales invoice pdf size in Magento 2. In case, I missed anything or need to add some information, always feel free to leave a comment in this blog, I’ll get back with proper solution.

Keep liking and sharing !!

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