Java iText Geospatial PDF exporter

I'm planning to use Java iText library to generate Geospatial PDF (http://en.wikipedia.org/wiki/Geospatial_PDF).

There are some basic support in iText, but I have not found any high level API. People are trying to directly use the adobe format extensions.

http://www.mail-archive.com/itext-questions@lists.sourceforge.net/msg开发者_如何转开发40443.html

Do you know any easier solution?

Thanks in advance, Regards,

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Until iText adds some high-level API calls for it, your only option will be to dive into the low level objects (PdfObject's subclasses) with a copy of the PDF Specification handy, turned to the relevant section...

err... Must be in one of the addendums... Ah! Here it is., under "part 1:..."->Interactive Features...->8.8 Measurement Properties->8.8.1 Geospatial Features.

I wish you luck.