acespritech

Are you looking for a way to create an upload form that automatically sends WordPress file uploads to your Dropbox? Using this Plugin you can easily integrate your Dropbox to your WordPress website. You can select maximum file size till your dropbox maximum upload size.
Features:- 
1 – Easy to connect form with Dropbox. 
2 – There is no file limit for upload. 
2 – Admin have short-code of form to display form in any page using it.
Shortcode:- [aspl_dropbox]

ASPL Dropbox File Upload

Another Best Plugin for Integrate Dropbox With Your Upload Form.

Samuel Wood (Otto)

Audrey Capital

Adds a new tab to the Add media screen, allowing you to pull images from Dropbox into WordPress.
“Sideloading” is a term given to differeniate from “uploading” or “downloading”. When you sideload an image, you’re copying it directly from Dropbox to WordPress. So if you keep your images in Dropbox, this plugin allows you to easily copy those images into WordPress.
After sideloading an image into WordPress, you’ll find it in the Media Library and available for use in Galleries, or as images in the Post, or just whatever you like. It’s just as if you uploaded them manually.
Note that sideloading many images at once may take more time than your webserver will allow. If this happens, just sideload them in smaller groups.
Credits:
<ul>
<li>This plugin uses the Dropbox PHP code (albeit modified slightly) from https://github.com/Dropbox-PHP/dropbox-php.</li>
<li>This plugin uses the jsTree Javascript library from http://www.jstree.com/.</li>
<li>The three image icons come from the Lullacon Pack 1: http://www.lullabot.com/articles/free-gpl-icons-lullacons-pack-1</li>
</ul>

Dropbox Photo Sideloader

Especially now that Dropbox has added a File Requests feature, this Sideloader plugin is a lifesaver. Version 0.6 of the plugin is working just fine for me. No problem loading images with spaces in the filename - spaces were converted to hyphens once they arrived in WordPress Media Library.
Thank you :)



Got it to work - very nice

Adds a new tab to the Add media screen, allowing you to pull images from Dropbox into WordPress.

ASPL Dropbox File Upload vs Dropbox Photo Sideloader