Chris Klosowski

This plugin adds the shortcode <code>[plugin_banner]</code>, so you can quickly and easily display the banner image from the WordPress.org repository for the given plugin slug.
For example, to display the banner image of this plugin you would use: 
 [plugin_banner slug=”wp-plugin-banner”]
By default images are not linked but if you add <code>link=true</code> into the argument list the image will be clickable and take the visitor the plugin page in the WordPress.org plugin directory.
The image status and plugin title is all pulled dynamically from the WordPress.org API, this data is cached for 1 week to help with performance.
List of supported attributes: 
 slug – The slug to the WordPress plugin (found in the URL in the WordPress.org plugin directory) 
 link – If the image should be linked to the plugin in the WordPress.org directory. Options: true|false (default) 
 title_wrapper – What HTML element to wrap the title of the plugin with. Supported: h2 (default), h3, h4, h5, em, strong, span, p

WP Plugin Banner

Easily display the banner image and title of a plugin on the WordPress.org Directory within your WordPress posts.

Square One Media

Richard Webster

This WooCommerce plugin prevents a user from being able to purchase a downloadable product that they already own, as long as they are eligable to download that product. In place of the “Add to Basket” button on the product page, a message will display informing the user they already own the item, and links to download the linked files are provided there. Those links are the special links to the file that are provided on the “My Downloads” page, or part of the “My Account” page.
If the user has had a refund for the item, or if they have used up all of their allowed download (when product has a limited number of downloads) then the normal “Add to Basket” button will show again, allowing purchase.
On any page that displays the products other than the single product page, the button shows as “Read More”, as though the product is not available.

Disable Downloadable Repeat Purchase – WooCommerce

For WooCommerce. Disable the ability for logged in users to purchase items they already own that are downloadable.

WP Plugin Banner vs Disable Downloadable Repeat Purchase – WooCommerce