Print to PDF and choose a large DPI in case you desire to export from PDF back to an image for tracing in aspire to create the path
Inkscape also does this by creating vectors from the image
There are free autocad programs out there, Check techsupportalert.com
I have solid works, inventor, autocad etc.. It's what I do for a living but from what I gather your trying to do, you don't need those to get the shape into aspire, bringing the image in and tracing would accomplish the same as the dxf... Maybe even try sketch up?
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