Perhaps you need PDF = import inside DWG.First you must use Vectorize your PDF inside BrisCad.
You export your-image to DXF and import inside AdobeIlustrator.,
Only BrisCAd or AutoCad can customize coordinates as Top-Level of precision.
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https://youtu.be/cUXU44Pb9K8?t=42
How to automate PDF-import more better inside AutoCad
https://sourceforge.net/projects/vlaxcompil/files/Kit2020-03/setup-vlaxcompil1-137b.zip/download
Automate vectorize of PDF to coordinates.
Please your images PDFs or JPEGs must have, >=300dpi.,.
If your PDF have dpiSize<300dpi then i have tool PDF-corectionpDPI.exe
PDF-corectionpDPI.exe , may be fail , if your PDF have bugs or problems,.,.
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https://youtu.be/KeEKqDs08gg?t=25
{--}Also, Briscad support Visual-Lisp, very easy graphical programming language
https://youtu.be/67TZ_LsbrW8?t=38
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I study geodedic system, cartographic maps,trigoometric GIS, GPS,WGS-84, UTM ,lati-long .I develope mathematics-parser,(C++, tokenizer RTF,lisp), backtracking for lexer-analyze. also, I write programs in other programming language, objectARX, C, turbo pascal, delphi3,free-pascal, Visual C+2010, c++, prolog language, delphi, arx, c#, acis.vc++ ,latex
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Already i vectorize images to geographic dwg maps inside the autocad..
I understand your task,,
you need "calibrate" the jpeg/ and drawing in foreground on this jpeg.
.(you can draw the spline, polylline, circles...)