From Matter Details:

  • Click Matters in the side panel > select the client matter > Click Details

  • Under Matter Details > click billing section > click Invoices Tab > Clickicon > Select "Print Invoice (Selected)"

From Activities:

  • Click Activities in the side panel > click Invoices section > Select an invoice > Clickicon > Select "Print Invoice (Selected)"

This will immediately generate a PDF which you can save and/or print.