To use e-signatures for farming contracts, first select a compliant e-signature platform that adheres to Australian privacy and electronic transaction laws. Prepare the contract document in a digital format, such as PDF, and upload it to the platform. Add signature fields for relevant parties, including farmers, suppliers, or lenders. Send the document via secure email or portal for review and signing. Once signed, the platform generates an audit trail with timestamps and IP verification to confirm completion. Store the executed contract digitally for record-keeping.