# Drawing Tools [GstarCAD 2018](Help%20System/GSTARCAD/2018/Index.md) → [What's new](Help%20System/GSTARCAD/2018/What's%20new/(What's%20new).md) → [Additional Pages](Help%20System/GSTARCAD/2018/What's%20new/Additional%20Pages/(Additional%20Pages).md) - [Drawing Lock](Help%20System/GSTARCAD/2018/Innovative%20Features/Drawing%20Lock.md) - [Drawing Compare](Help%20System/GSTARCAD/2018/Innovative%20Features/Drawing%20Compare.md) - [Batch Purge](Help%20System/GSTARCAD/2018/Innovative%20Features/Batch%20Purge.md) - [Graphic Compare](Help%20System/GSTARCAD/2018/Innovative%20Features/Graphic%20Compare.md) --- Gstarsoft Co.,Ltd