Can Let’s Encrypt be used for document signing?


We’re looking to build a free document signing tool instead of using a service like It this possible with a Let’s Encrypt cert?


No, from the Frequently asked Questions

####Does Let’s Encrypt issue certificates for anything other than SSL/TLS for websites?

Let’s Encrypt certificates are standard Domain Validation certificates, so you can use them for any server that uses a domain name, like web servers, mail servers, FTP servers, and many more.

Email encryption and code signing require a different type of certificate that Let’s Encrypt does not issue.

Digital Signature for signing and encrypting files

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