Linking Dropbox to Speechify makes it easy to breeze through documents and PDFs.
Open the Speechify app
Click the blue plus button
Select "Import Files"
Select the Dropbox button
If you have the Dropbox app installed on your phone, Speechify will automatically open the app
Select "Allow" from the Dropbox app
Accounts are now linked
Add desired files to library
The next time you select "Import Files", it will automatically show your connection to Dropbox
Select as many documents as desired and save them to the Speechify library