DocuSign

The main use-case you'll see with DocuSign is for simply uploading PDFs and creating fillable text and signature blocks. While it's the gold standard for eSignature, they are very much enterprise-focused, meaning their average customer is a larger size business, and the features they are building out are more enterprise-business features.

(e.g. allowing to rope in identity verification for healthcare companies like Independent Health to automate identity verification when signing up for a health insurance plan).

If this doesn't sound like you, you'd be much better off with a solution like PandaDoc who has more of a focus on UI/UX, and is building out features more relatable to small-mid-size teams.