Adobe and Dropbox is now offering a more seamless way to access PDF files to and from Dropbox and Adobe Acrobat Reader. It's available now on desktop and Mac so you can now open PDFs you have stored in your Dropbox right from Adobe apps. The edits you make on these files will automatically be synced on your Dropbox. This also makes it easier to share with collaborators by trimming down some of the steps. iOS integration is coming soon so you'll be able to open PDFs with Acrobat Reader mobile app and edit right from there. The file will also be synced with Dropbox from there. Android integration is coming a bit later though. It's slated for a 2016 release. 

Source: Dropbox | Via: Android Community