What is a good report generation (i.e. PDF reports) that can be used with Objective-C on mac?

I am creating a program for mac that needs to generate reports and be able to print them as PDF files. I would rather find an already created library for this rather than hard-coding everything, but I can't find anything yet. Do you recommend any report generation libraries that can be used in Objective开发者_StackOverflow社区-C?

Thanks for your help!

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Haven't looked at it in a pretty long time, but you might want to check out ReportMill. It goes way back to the NeXTSTEP days.

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If you are online and can call a web service, then you can get Docmosis to produce a PDF report and deliver it wherever. I've seen this done in objectve-c from an iPad.