This Google Drive App loads a PDF from your Google Drive straight into Snap&Read's extension to use all of Snap&Read's reading and annotation tools.  

For this to work, you'll also need Snap&Read's Chrome extension that is available here: https://chrome.google.com/webstore/detail/snapread-universal/mloajfnmjckfjbeeofcdaecbelnblden 

For more information see https://snapandread.com
or
http://help.donjohnston.net/snapandread-universal