Workaround to Include attachment in Web-to-case
|Knowledge Article Number||000188389|
|Description||How to achieve requirement of including attachments when cases are submitted via web-to case or when a lead is created via Web-to-lead.|
|Resolution||With standard functionality it is not possible to include attachments when cases are created via web-to-lead. However, following are the two workarounds to achieve this requirement:
There is an existing idea on IdeaExchange portal for implementation of this idea.
Idea link: https://success.salesforce.com/ideaView?id=08730000000BrhfAAC