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.

motov.net

Ebook Store Plugin for WordPress is a tool that allows you to sell, watermark, encrypt and deliver by email and/or download ebooks to your customers, via beautiful one click checkout experience. 
The pro version is capable of encrypting the ebooks upon download or email delivery. It supports PDF, ePub, TXT, Mobi and Zip files. 
The Pro version also supports WooCommerce integration, so you can sell and deliver encrypted ebooks trough WooCommerce checkout, no additional setup required except enabling the feature and assigning an ebook to a woocommerce product.
Integrates with Elementor and WooCommerce (optional).
<pre><code>Video demonstration:
</code></pre>
<iframe loading="lazy" title="Ebook Store for WordPress - Getting Started" width="750" height="563" src="https://www.youtube.com/embed/HxYzlaEHPU4?feature=oembed" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share" referrerpolicy="strict-origin-when-cross-origin" allowfullscreen></iframe>
<pre><code>Video of WooCommerce cart integration:
</code></pre>
<iframe loading="lazy" title="WooCommerce + Ebook Store - PDF File Encryption, print and copy protection Demo 1" width="750" height="563" src="https://www.youtube.com/embed/dJTvA0-lGmI?feature=oembed" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share" referrerpolicy="strict-origin-when-cross-origin" allowfullscreen></iframe>
Ebook store now supports integration with WooCommerce so you can add ebook store items to your WooCommerce products and let customers download ebooks from the checkout complete page. The PDF encryption and watermarking works well and will use the customer data to watermark the ebook which is a proven method to prevent piracy.
<pre><code>Payment Methods:
</code></pre>
All supported via via WooCommerce and also with Ebook Store you can accept payments with (built in): 
1. <a href="http://paypal.com" rel="nofollow ugc">PayPal</a> – Account, Credit Card, eCheck, Bank / Wire transfer payments. 
2. <a href="http://stripe.com" rel="nofollow ugc">Stripe</a> – Credit Card payments, BitCoin. 
3. Apple Pay – YES via Stripe 
4. Google Pay – YES via Stripe 
5. Amazon Pay – YES via Stripe 
6. Cash App – YES via Stripe 
7. Klarna – YES via Stripe 
8. Link – YES via Stripe 
9. WeChat – YES via Stripe 
10. PayNow – YES via Stripe 
11. SEPA – YES via Stripe
<pre><code>DEMO
</code></pre>
<a href="http://wp.shopfiles.com/?p=116" rel="nofollow ugc">Single ebook</a> – How the order page looks 
<a href="http://wp.shopfiles.com/?p=612" rel="nofollow ugc">Multiple ebooks</a> – Multiple ebooks / embedded forms on one page 
<a href="http://wp.shopfiles.com/?product=sample-ebook" rel="nofollow ugc">WooCommerce DEMO before ordering</a> – Integration with WooCommerce 
<a href="http://wp.shopfiles.com/?page_id=448&order-received=15419&key=wc_order_5911f4fb2605f" rel="nofollow ugc">WooCommerce DEMO after ordering – Order Received Page</a> – How the customer sees the downloads after checkout is complete in WooCommerce.
<pre><code>Sample thank you page and encrypted PDF
</code></pre>
Here you can see how the encrypted PDF will look like. It contains QR code watermark with buyer info and watermark in the header with copyright data and buyer info again. 
Encrypted Order Link 
<a href="http://wp.shopfiles.com/?page_id=577&ebook_key=b495253403e875d360d67bd5a3802c43&action=thank_you" rel="nofollow ugc">http://wp.shopfiles.com/?page_id=577&ebook_key=b495253403e875d360d67bd5a3802c43&action=thank_you</a>
<pre><code>Are there translations?
</code></pre>
Yes, the front-end of the software is translated to: English, German, French, Spanish, Hindi, Chinese and Russian. More translations are coming.
<pre><code>Are there any limitations?
</code></pre>
The Free version can not encrypt PDF files and put watermarks. For this you need the $30 full version UPGRADE from <a href="http://www.shopfiles.com/index.php/products/wordpress-ebook-store" rel="nofollow ugc">http://www.shopfiles.com/index.php/products/wordpress-ebook-store</a>
<pre><code>What does it do? 
</code></pre>
It will let you sell your ebooks in a very stylish and secure way. It’s PRO version is the only extension for WordPress that allows encryption of the sold Ebooks, by putting passwords and watermarks / print protection to the PDF files for sale.
<pre><code>How it works?
</code></pre>
Very easy and intuitive! All you need to do is upload a book with its cover’s information and put a price on it. Once you do that you can copy paste the book embed code to place it inside the article. Once you have done that please make sure you have filled in your PayPal account where you want to receive the payments.
<pre><code>How to contact support?
</code></pre>
Simply by email support@shopfiles.com and URL: <a href="http://www.shopfiles.com" rel="nofollow ugc">http://www.shopfiles.com</a>
That’s all you need to do in order to start selling files! 🙂

Ebook Store

Stylish and modern ebook seller plugin, with 3D book preview, optional preview file for each book, automated email delivery and order processing.

Easy Digital Downloads – Extra note(s) On Checkout vs Ebook Store