The current version of PDF2CAD is v11. It runs well on the new Silicon M1 and M2 Mac via Rosetta. Rosetta is a translation process that allows users to run apps that contain x86_64 instructions on Apple silicon. Rosetta is meant to ease the transition to the M Processor Series, giving developers time to create a universal binary for their app.
After installation, run the pdf2cad program.
When the Mac asks to Install Rosetta Stone, please install it.