SPONSORED POSTAbove: With Digify, messages can be deleted after your recipients read them.Image Credit: DigifyThis sponsored post is produced in association with Digify. This blog post will self-destruct in 24 hours. Or it would if it were a document sent to you via Digify, a Singapore-based startup that is building a tool for securely sharing documents, while ensuring that the recipients can’t copy, screenshot, or re-share those documents without your permission.