Can I sign the document in Acrobat instead?

No. Adobe Acrobat provides you with the ability to sign a document, but this feature is useful when you are the only signatory on a document and are also the Document Custodian. When you are asked to sign a document, do not use Acrobat to sign. It manages signature order, multiple Signatories, signature placement, signature policies, and creates an e-photocopy. It also maintains a detailed Audit trail for your documents, a feature that is not available when signing directly in Adobe Acrobat. Detailed Audit trails help documents to be legally enforceable as well as compliant with certain regulations.