The short answer is: Unlike converting a JPG to a PNG, a DWG (a full drawing database) and a PAT (a text-based pattern definition) are fundamentally different. However, you can extract a design from your DWG and define it as a custom hatch pattern.
If you have ever stared at a complex geometric design in AutoCAD and wished you could reuse that exact shape as a fill pattern, you have likely searched for the elusive process to . convert dwg to pat file
Last updated: October 2025. Works with AutoCAD 2020-2026, BricsCAD, and ZWCAD. The short answer is: Unlike converting a JPG