Abrar Ahmed

This plugin is particularly designed for developers so that they can easily upload images via URL.
Features of this plugin: 
1. You can give URL to this plugin then this will upload the image to WP and will return attachment ID. 
2. You can give the same URL multiple times but it will not upload an image each time, it will upload an image once and will return attachment ID each time when it is called. 
3. If image URL is change or size of the image on URL is different then just on that condition image will be uploaded to WordPress
It has some more functions too that will help developers for getting details about image and size as well.
<h3>Arbitrary section</h3>
The following features of this plugin are going to be defined for developer understandings.
<h3>A brief Markdown Example</h3>
Unordered list:
<ul>
<li>Function iUploadImageByURL This function is the basic function that can be used while upload image from URL. It will return Attachment_ID after creating an attachment from image URL. Image from URL will be uploaded once if URL and size of the image are same. If the same URL with the same size of the image given then already created attachment of that image will be uploaded.</li>
<li>Function iGetFileSize This function can be used to get the size of the image from URL.</li>
<li>Function sFormatSize This function will return measurement format size of the image.</li>
</ul>

URL Image Uploader

This function is a tool for developers to help them upload images from URL to the WordPress site.

Frank Chomiuk

PlaneUpload allows your customers to upload files to your WooCommerce orders. 
The uploader is present in the product view, cart view, order (customer) and order (admin). 
In the product and cart view, the files are in temporary (attachment) mode. After the customer places the order, 
the files are saved in your cloud.
Files are uploaded into your cloud account that may be:
<ul>
<li>Google Drive</li>
<li>AWS S3</li>
<li>Dropbox</li>
<li>(S)FTP Server</li>
</ul>
Instead of storing the files in your WordPress server, they are in your cloud, what are the advantages of doing so?
<ul>
<li>It is impossible to hack your website uploading some malicious files, as they are stored in different place</li>
<li>You will never run out of free disk space in your wordpress installation (by uploading those files)</li>
</ul>
Key features:
<ul>
<li>advanced ajax uploader (drag & drop, multiple file upload, paste from clipboard, supports different browsers and devices)</li>
<li>automatic backups to another cloud (your files are uploaded into the two different clouds simultaneously)</li>
<li>automatic compression that save space in your cloud</li>
<li>automatic file encryption</li>
<li>customization using CSS</li>
<li>file comments (your customer and you can add comments to any file)</li>
<li>logs (you can see what happend in the uploader, for example if the file was removed)</li>
<li>thumbnails for file formats like .pdf, .pps, .doc, .html, .psd, .cdr, .mp4 and over 100+ more</li>
</ul>

PlaneUpload – Files for WooCommerce Orders

PlaneUpload allows your customers to upload files to your WooCommerce orders. Files are stored in your cloud account (Google Drive, AWS S3, FTP or Dro …

URL Image Uploader vs PlaneUpload – Files for WooCommerce Orders