Some PCB design software, such as ACE 3000, support the conversion of schematics data saved in DXF/DWG format to some of the gerber data formats, including the .gbr files. There are many gerber files used, so you may want to pick some specific gerber extension for more refined results.
Convert AutoCAD DXF Drawing Exchange Format to Gerber (PCB) file.
We have found 2 software records in our database eligible for .dxf to .gbr file format conversion.
Microsoft Windows software - convert dxf to gbr on Windows
A CAD and Gerber conversion software
Convert from dxf file format
The tables with software actions are a good pointer for what a certain program does with various file types and often may give users a good hint how to perform certain file conversion, for example the above-mentioned dxf to gbr. However, it is not perfect and sometimes can show results which are not really usable because of how certain programs work with files and the possible conversion is thus actually not possible at all.
A PCB Design and CAD software