To manage your upload settings, navigate to Settings > Configuration Options > Upload Settings.

The Excluded File Types tab allows you to exclude certain file types from being uploaded to your Canto account.  Separate these with a comma in the field.

The Read Metadata tab allows you to choose which metadata fields will be read from your uploaded files into Canto and applied to your assets.

You can also decide to add a Pop Up Window upon upload to apply metadata in Canto, the Advanced Uploader & Canto Connect.

Finally, you can require certain metadata fields to be applied by users upon upload.  Select save in the top right corner to apply your changes.