LibreCAD is a cross-platform 2D CAD program written in C++11 using the Qt framework. It can read DXF and DWG files and can write DXF, PDF and SVG files. The user interface is highly customizable, and has dozens of translations.
LibreCAD 
LibreCAD is a 2D CAD drawing tool
based on the community edition of QCAD.
LibreCAD uses the cross-platform framework Qt,
which means it works with most operating systems.
The user interface is translated in over 30 languages. https://translate.librecad.org
LibreCAD is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License version 2 (GPLv2)
as published by the Free Software Foundation.
Please read the LICENSE file for additional information.
The master branch represents the latest pre-release code,
and now requires Qt 6.4.0 or newer.
The 2.2.1 branch requires Qt 5.15.0 or newer.
The 2.2 branch requires Qt 5.2.1 or newer.
The 2.1 branch will be the last to support Qt4.
The 2.0 branch will be the last to support the QCAD toolbar. 
DXF Converter
LibreCAD can be used as dxf to a pdf, png or svg converter. For example, to convert a foo.dxf to foo.pdf, foo.png or foo.svg:
$ librecad dxf2pdf foo.dxf
$ librecad dxf2png foo.dxf
$ librecad dxf2svg foo.dxf
Releases and Milestones
libdxfrw
libdxfrw is an associated project that allows LibreCAD to read DXF and DWG files.
Requests and Bug reports
Users Documentation
Questions or Comments
- LibreCAD’s Forum
- IRC: #librecad at libera.chat
Building
Requirements:
More information: Build from source
Contributing
There is a resources repository for people that want to indirectly
contribute to the project by supplying icons, stylesheets, documentation, templates…
Associated downloads: https://sourceforge.net/projects/librecad/files/Resources/