You can connect Zinc on your mobile device to file sharing accounts like Google Drive, Dropbox, and OneDrive to ensure that you can send any desired file to your colleagues.
To connect a File Sharing Account:
Tap the Settings button from within the Zinc app.
Tap the file sharing account you wish to connect to Zinc from the list of options marked “Connected Accounts”.
Sign into your account when prompted.
Click “Allow” when asked to allow access to the account files.
This will give you the ability to send files through Zinc to your colleagues. To send a file, go to any active conversation and tap the lined-paper icon at the bottom of the screen.