Marco Milesi

WP Attachments enhances the download experience and file management in WordPress. It automatically displays attachments in your posts and pages, so you don’t need to manually insert download links. 
Easily attach, unattach, or reattach files directly from the media library.
Key Features: 
– 🤖 Automatically displays attachments after post content 
– ℹ️ Backend metabox for managing attachments 
– 🔃 Quick Attach, Unattach, and Reattach actions in the Media Library 
– 🔢 Download counter with anti-spam and logged-in user filtering 
– 🧑‍💻 Developer hooks and filters for customization 
– 🛍️ WooCommerce compatible 
– 🎨 Five icon packs to choose from 
– 📜 Supports posts, pages, and custom post types 
– 🎢 Customizable themes (title, date, size, caption, and more)
<a href="https://www.youtube.com/watch?v=J7gf0hxl_z8" rel="nofollow ugc">Video Overview</a>
<h3>Contributions</h3>
<ul>
<li>Part of <a href="http://www.wpgov.it" rel="nofollow ugc">WPGov.it</a>, providing open source solutions for Italian Public Government websites.</li>
<li>Thanks to the Italian community <a href="http://www.porteapertesulweb.it" rel="nofollow ugc">Porte Aperte sul Web</a> for beta testing and ideas.</li>
<li>Metabox based on <a href="https://wordpress.org/plugins/ij-post-attachments/" rel="ugc">IJ Post Attachments</a></li>
<li>Some icons by <a href="http://p.yusukekamiyamane.com/" rel="nofollow ugc">Yusuke Kamiyamane</a>.</li>
</ul>

WP Attachments

Nice and useful plugin. The only downside is that it lacks a setting to show image thumbnails instead of a generic image icon in the edit metabox.

Show thumbnails instead of icons in metabox

A powerful solution to manage and display your WordPress media attachments in posts and pages.

Pranav Pathak

The Agreement plugin helps to create pop-up licence agreement or term to use before download any thing from post or page. It will give freedom to change text in pop-up. After activation of plugin in post/page add file from “Add Media”, then change editor type from Visual to text and give id to that media file. Id will be like this id=”agreement”. Your link will be like ‘id=”agreement” href=”http://yourdomain.com/wp-content/uploads/2016/01/pdf.pdf”‘ or you can use custom HTML block too. Now save post/page.
Example
{a id=”agreement” href=”http://yourdomain.com/wp-content/uploads/2016/01/pdf.pdf”} file name {a}
This plugin works for multiple item in single page.
After activation there is a sub menu in Settings called Agreement. Click on this and there is a option to change license agreement text called “Enter your License Agreement setting text below:”. You can also insert html tag like ul,li, br, hr from agreement option in settings.
<h4>Requirements</h4>
<ul>
<li>WordPress 3.5.1 or greater</li>
<li>PHP 5.2.6 or greater (5.3 recommended)</li>
<li>MySQL 4.1.2 or greater (5.x recommended)</li>
</ul>

Agreement

This is the best and most simple plugin I have found for this purpose. 

Great plugin

The Agreement plugin helps to create pop-up licence agreement or term to use before download any thing from post or page.

WP Attachments vs Agreement