Is there a way to add a digital signature field? Or use a tablet with the digital pen to sign a field?

Not sure if this is helpful

https://www.docusign.com/partner/quickbase-docusign-provided-by-juiced-technologies

Hey Beth, 
This is a fairly common request for our QSPs, so I know a number have implemented solves. What's your use case?

Sam Jones
QuickBase Product Manager
 

HI

Relief is in sight.  CloudBase Services has a simple "add in" to let a person sign with a stylus, their finger or a mouse ... whatever their device allows.  You can contact them here.

S

Juiced has 2 add ons for capturing signatures.  The DocuSign integration mentioned above by Chad (thank you Chad) and a simpler one that you can demo right here.
https://juicedtech.quickbase.com/db/bhacsb6cf?a=er&rid=3&dfid=10

just click one of the buttons on the form from the link above to see how it works

Keith