We are needing to grab a thumbnail image of our documents on Google Could Storage for use in our Drupal module. Previously https://docs.google.com/viewer?url=DOC_STORAGE_URL&a=bi&pagenumber=1 worked for us, but the google viewer seems to no longer support the a=bi parameter.
Does anyone have any information about the viewer no longer generating a thumbnail, or know if there is a way to grab a thumbnail image of the document stored on Google Could Storage using its API like you can with the Drive API? We are currently using the google-api-php-client. https://developers.google.com/drive/v2/reference/files
