bseddon

On our site we use Easy Digital Downloads. Once an EDD download (e-commerce product) definition has been created it is usually supported by 
other posts that provide additional information – help or tutorial information for example. Ideally, these posts will have a similar style, 
use similar words and need to reference the same core information about the download such a the current version number, the slug, the excerpt, etc..
One way is to cut-and-past information from a download in to each post. But this means that when download details change, its essential to 
remember to update any related posts. This plugin provides another way: a set of plugins that allow you to reference details from a download 
and in this way remove the need to update related posts.
<h4>Features</h4>
Select the linked post using a meta-box dropdown from with in the post definition 
Over 40 shortcode to access post information 
Short-codes to access post field values and to access post meta values 
Access any post meta value by meta key

Download-Post/Page Link

Link posts or pages to an EDD download then use shortcodes in the post to access any field or meta data such as the excerpt, thumbnail and title.

Adhit

With this plugin, you can easily hide or show your Easy Digital Downloads product/download from the frontend display with just a click.
This plugin requires <a href="https://wordpress.org/plugins/easy-digital-downloads/" title="Easy Digital Downloads" rel="ugc">Easy Digital Downloads</a>.
It allows you to: 
1. Hide a download so it doesn’t appear on the custom post type archive page, anywhere where the [downloads] shortcode is being used, or any custom query on a page template. 
2. Prevent direct access to the download. The browser will redirect the user to the site’s homepage. 
3. Do a combination of hiding the download and preventing direct access to it.
Filter example 
Example filter of how you can change the redirect based on the download ID. Copy this function to your child theme’s functions.php or custom plugin
<pre><code><?php code(function thsedd_custom_edd_hide_download_redirect( $url ) {
 // download has ID of 32
 if ( '32' == get_the_ID() ) {
 $url = 'http://easydigitaldownloads.com'; // redirect user to another external URL
 }

 // download has ID of 12
 if( '12' == get_the_ID() ) {
 $url = get_permalink( '12' ); // redirect to another download which has an ID of 8
 }

 // return our new URL
 return $url;
 }
 add_filter( 'edd_thsedd_download_redirect', 'thsedd_custom_edd_hide_download_redirect' );); ?>
</code></pre>
Example filter of how you can globally change the redirect. Copy this function to your child theme’s functions.php or custom plugin
<pre><code><?php code(function thsedd_custom_edd_hide_download_redirect( $url ) {
 $url = get_permalink( '12' ); // redirect to another download, post or page

 return $url;
 }
 add_filter( 'edd_thsedd_download_redirect', 'thsedd_custom_edd_hide_download_redirect' );); ?>
</code></pre>

EDD Hide Show Download

Allows a download to be hidden as well as preventing direct access to the download

Download-Post/Page Link vs EDD Hide Show Download