# RASTERDPI System Variable [GstarCAD 2022](Help%20System/GSTARCAD/2022/Index.md) → [System Variables](Help%20System/GSTARCAD/2022/System%20Variables/(System%20Variables).md) → [R](Help%20System/GSTARCAD/2022/System%20Variables/R/(R).md) **Function Description:** The RASTERDPI system variable is used to control the paper size and plot scale when changing from dimensional to dimensionless output devices, or vice versa. | | | | --- | --- | | Type | Integer | | Saved in | Registry | | Initial value | 300 | | Range | 100 \~ 32767 | It can apply on changing from millimeters or inches to pixels, or vice versa.