Posted by Gary S on Mar 13, 2020; 7:56pm
URL: https://forum.librecad.org/Default-drawing-empty-dxf-tp5718533p5718554.html

Instead of trying to modify empty.dxf, create your own template and place it in your own user-defined library, e.g. "C:\docs\dwgs\template\myTemplate.dxf".   You can then configure LibreCAD to use your template when it is launched.  Specify the path/filename to the template you created by selecting Options -> Application Preferences, go to the "Paths" tab and populate the "Template" field.  The specified template is used instead of the default LibreCAD template when the application is launched and for new drawings.

There are a couple of benefits; as you discovered, changes to 'empty.dxf' don't stick, and if you update LibreCAD at a later date, you won't loose the custom template you created.

LibreCAD defaults to the last directory used when opening a file.  That is its normal behaviour...