Conversion from 3D PDF to SOLIDWORKS is not supported yet :(

3D PDF

3D PDF is a PDF file with 3D geometry inside. Using any 3D PDF enabled viewer, rotation, zoom and part selection is available within the 3D view.

3D PDF is just like a normal PDF (Portable Document Format) file, which contains a 3D view somewhere on some page. Just like a PDF containing an embedded image, except when you put the mouse over it, you can rotate, zoom, pan and explore the scene in 3D (three dimensions). The file actually contains a 3D geometric representation of the scene, not just images from different viewpoints.

SOLIDWORKS

Approximately 23% of CAD professionals globally use SOLIDWORKS on daily basis. Together they generate tremendous volume of 3D files in native format, which are troublesome to feed into 3rd party major and minor CAD systems due to format specifics.

SOLIDWORKS files (previous to version 2015) use the Microsoft Structured Storage file format. This means that there are various files embedded within each SLDDRW (drawing files), SLDPRT (part files), SLDASM (assembly files) file, including preview bitmaps and metadata sub-files.

CAD Exchanger seamlessly reads SOLIDWORKS data (.sldprt and .sldasm extensions) and converts to the file format of your choice.