[3D Printing] Open Source implementation of PRC creator

[Michael Sweet]

All,

Phil Spreier (3D PDF Consortium) provided the following reference to an open source implementation of a PRC creator:

	https://github.com/XenonofArcticus/libPRC

(PRC is the new 3D format in PDF 2.0.)

So at least it appears to be possible to *write* and embed PRC content in a PDF using this library.

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Michael Sweet, Senior Printing System Engineer