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

Dipak C. Gajjar

This WordPress plugin is <a href="https://wordpress.org/plugins/easy-digital-downloads/" rel="ugc">Easy Digital Downloads</a> add-on/extension, adds ‘Extra note(s)’ textarea to the checkout screen for buyers to add notes about their order.
<h4>This plugin will…</h4>
<ul>
<li>Adds ‘Extra note(s)’ textarea to the checkout screen</li>
<li>
Adds {extra_note} email tag to show ‘Extra note(s)’ data in either the standard purchase receipt or admin notificatios
</li>
<li>
Check the <a href="https://wordpress.org/plugins/edd-extra-notes-on-checkout/screenshots/" rel="ugc">screenshots</a>.
</li>
</ul>
// This plugin doesn’t have any settings/options. Just Install, Activate, and Boom!
Follow the development of this plugin on <a href="https://github.com/dipakcg/edd-extra-notes-on-checkout" rel="nofollow ugc">GitHub</a>
P.S. It is always the best policy to open a <a href="https://wordpress.org/support/plugin/edd-extra-notes-on-checkout" rel="ugc">support thread</a> first before posting any negative review.

Easy Digital Downloads – Extra note(s) On Checkout

Easy Digital Downloads add-on/extension, adds 'Extra note(s)' textarea to the checkout screen for buyers to add notes about their order.

EDD Hide Show Download vs Easy Digital Downloads – Extra note(s) On Checkout