A liquid jetting apparatus includes: a conveyance roller; a head; a discharge roller; a tray; a memory; and a controller that receives printing data, drives the conveyance roller and the discharge roller to convey a sheet at a first velocity in a conveyance direction, and controls the head to jet liquid on the sheet. The controller obtains a first amount and a second amount based on the printing data. After the liquid is jetted from the head on the first area, the conveyance roller and the discharge roller are driven to convey the sheet at a second velocity slower than the first velocity and to discharge the sheet on the tray, or conveyance of the sheet is stopped for a predefined time and then the sheet is conveyed at the first velocity to be discharged on the tray.