Subscription customers of plain AutoCAD 2009 can log on to the Subscription Center and download Subscription Pack 2. This pack improves PDF output (long overdue and very welcome) and adds the ability to attach PDF files. That’s welcome too, but is of largely academic interest right now because of a total lack of interoperability. Unless you only ever provide your drawing files to people who also have plain AutoCAD 2009 with Subscription Pack 2, they won’t see the PDF underlay. However, round tripping is supported, so when you get the drawing back the PDF underlay will reappear.

Here is a brief summary of the features, taken direct from the download page:

PDF Underlays
Now you can import PDF files, attaching them as PDF underlays. Once you attach a PDF underlay, you can use a variety of tools to snap to lines and objects, control the display of layers, move, scale, rotate, and clip the PDF underlay.

PDF Output
Key improvements have been made for publishing PDF files. File sizes have been reduced, making it easier to share designs. TrueType font support has been added, giving you control over precisely how your fonts are displayed.

This bonus pack is only available in English for AutoCAD® 2009, although, if desired, it can be installed on localized versions of AutoCAD 2009. If installed on a localized version of AutoCAD 2009, all new and related commands display in English only.

As usual, read the readme first, which contains much fuller descriptions of the new features.

OK, so I’m a long way from being the first to comment on this, but maybe I’ll be the last? Don’t count on it. In the unlikely event that this is the only CAD blog you ever read, you may be unaware that Autodesk and Bentley have decided to swap code so their respective products can make a better job of writing each other’s drawing formats.

The MicroStation DWG interface has traditionally been imperfect. (I remember raising the ire of one of the Bentley brothers in person many years ago on the CompuServe ACAD forum when I described Bentley’s DWG/DXF interface developers as incompetent (accurately, I may add). The brother in question was one of the said developers…) The AutoCAD DGN interface (which was available in Map for many years before making it into AutoCAD) has been rather less perfect than that, so this move should lead to benefits for customers of both products in future releases. Whether or not it actually will improve matters remains to be seen. That relies on the future competence of both parties in using ‘foreign’ code. The first versions could be, er, interesting. Or maybe they’ll be great.

Assuming the best, who should we thank for this development? Autodesk? Bentley? Maybe not. I think we should thank the Open Design Alliance (ODA). If Autodesk hadn’t been so keen to do damage to the ODA in its belated but increasingly urgent battle to win complete control over DWG, do you think this would have ever happened? I don’t think so. It hadn’t happened in the preceding couple of decades.

Thank you, ODA, for making this happen. May you live long and prosper, and continue to apply pressure to improve interoperability for all. But in the interests of fairness, don’t you think you should at least mention this development in your newsroom?