Inky's content analysis system identifies thousands of attachment types, including major document and image formats.
Inky automatically tags messages based on the attachments they contain, allowing you to search by document type using tag search tokens. For example, type #pdf, #doc, #spreadsheet, #xls, #ppt, or #presentation in the search bar to display a list of all emails with a particular type of attachment.
Let's say you need a more specific search, such as finding a pdf file sent by Claire. Simply type #pdf in the search bar and hit return. This will create the #pdf search token. Then type "Claire" or "from:Claire" and you will see only messages with pdf attachments from Claire.