Paolo Bertinetti

QRMemo is a versatile WordPress plugin that enables you to automatically generate and display QR codes at the end of specific post types. The QR codes added automatically contain the URL of the page or post they are appended to, making it easy for users to share or save the page.
The plugin also supports generating QR codes using a shortcode, allowing you to insert a QR code with custom text anywhere in your content.
Key Features: 
* Automatically add QR codes containing the page URL to the end of posts, pages, and other custom post types. 
* Customize which post types should display QR codes. 
* Generate QR codes via shortcode, specifying custom text, size, margin, and alignment.
Libraries Used: 
* <a href="https://github.com/endroid/qr-code" rel="nofollow ugc">Endroid QR Code</a> – A powerful library for generating QR codes in PHP.
<h3>License</h3>
This plugin is licensed under the GPLv2 or later. For more details, see <a href="https://www.gnu.org/licenses/gpl-2.0.html" rel="nofollow ugc">https://www.gnu.org/licenses/gpl-2.0.html</a>.

QRMemo

QRMemo is a WordPress plugin that adds QR codes to the end of selected post types and allows generating QR codes via shortcode.

byronj

Easy Content Adder allows you to add custom content via a native WordPress editor and display the content at the top or bottom of all posts, pages, or both.
All text, links, and media attachments can be added to the custom content. If you can add it to a WordPress Page or Post, it can be added via Easy Content Adder.
<h3>Features</h3>
<ul>
<li>Hide the content from all posts without having to delete your content or disable the plugin.</li>
<li>Choose which post types to display the content on.</li>
<li>Display the content only on posts that have been tagged with select categories or taxonomies. </li>
<li>Chose whether to display the content at the bottom and/or top of all posts.</li>
</ul>

Easy Content Adder

A WordPress plugin to easily add custom content to all of your Pages, Posts, and Custom Post Types.

QRMemo vs Easy Content Adder