Scan2cad Portable ((free)) [FREE]

you only convert images occasionally (use Inkscape Portable for free) or work exclusively on Mac.

1. Overview Scan2CAD Portable is a specialized, USB-compatible version of the popular Scan2CAD conversion software. It allows engineers, architects, and drafters to convert raster images (scanned drawings, blueprints, schematics, or screenshots) into clean vector files (DXF, DWG, HPGL) directly from any Windows computer without installation. scan2cad portable