How to change default Magento 2 Admin Logo and Copyright notice

Magento 2 Admin Logo Customization

Magento 2 Default Admin Logo and Copyright notice can be changed/modified for our custom needs. The Default Admin Logo is Rendered in Magento_Backend module. The logo image source is passed as an argument, we can replace the argument with our own image path.

For this Illustration I proceed directly to the solution approach skipping module creation step.

Custom logo Path

We need to place the custom logo in the below directory
Mydons/CustomAdminLogo/view/adminhtml/web/images

Override the admin login Layout

File:- Mydons\CustomAdminLogo\view\adminhtml\layout\admin_login.xml
Here i have replaced the “logo_image_src” argument value with the custom image path.

<?xml version="1.0"?>
<page xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" layout="admin-login" xsi:noNamespaceSchemaLocation="urn:magento:framework:View/Layout/etc/page_configuration.xsd">
    <body>
        <referenceBlock name="logo">
            <arguments>
                <argument name="logo_image_src" xsi:type="string">
                   Mydons_CustomAdminLogo::images/customlogo.png
                </argument>
            </arguments>
        </referenceBlock>
    </body>
</page>

<?xml version="1.0"?>

<body>

Mydons_CustomAdminLogo::images/customlogo.png

</argument>

</arguments>

</referenceBlock>

</body>

</page>

Replace the Magento 2 admin Icon

Once after logging in to the Magento 2 Admin Panel a Magento Icon will appear in the Menu Sidebar.
Let’s replace the Magento icon as well as the copyright notice under the footer using the below code snippet.
File: Mydons\CustomAdminLogo\view\adminhtml\layout\default.xml

<?xml version="1.0"?>
<page xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" layout="admin-1column" xsi:noNamespaceSchemaLocation="urn:magento:framework:View/Layout/etc/page_configuration.xsd">
    <body>
        <referenceBlock name="logo">
            <arguments>
	      <argument name="show_part" xsi:type="string">logo</argument>
              <argument name="edition" translate="true" xsi:type="string">
                Community Edition
               </argument>                    
              <argument name="logo_image_src" xsi:type="string">
                   Mydons_CustomAdminLogo::images/customicon.png
              </argument>
            </arguments>
        </referenceBlock>
        <referenceBlock name="copyright">
            <arguments>
                <argument name="template" xsi:type="string">
                   Mydons_CustomAdminLogo::copyright.phtml
                </argument>
            </arguments>
       </referenceBlock>
    </body>
</page>

<?xml version="1.0"?>

<body>

Community Edition

</argument>

Mydons_CustomAdminLogo::images/customicon.png

</argument>

</arguments>

</referenceBlock>

Mydons_CustomAdminLogo::copyright.phtml

</argument>

</arguments>

</referenceBlock>

</body>

</page>

Overriding the copyright template in admin

To Replace the copyright message we need to override the default adminhtml template.
File: Mydons\CustomAdminLogo\view\adminhtml\templates\copyright.phtml

<?= /* @escapeNotVerified */ __('Copyright &copy; %1 CompanyName All rights reserved.', date('Y')) ?>

1	<?= /* @escapeNotVerified */ __('Copyright © %1 CompanyName All rights reserved.', date('Y')) ?>

Once the module is enabled we need to run the setup upgrade and Static Deployment command

php bin/magento setup:upgrade
php -dmemory_limit=5G bin/magento setup:static-content:deploy -f

1 2	php bin/magento setup:upgrade php -dmemory_limit=5G bin/magento setup:static-content:deploy -f