The PDF filter encountered a general problem. PDF export is aborted (0004).

[sjukmidlands]

I regularly but only occasionally get export to pdf error messages. Usually there is something on the xara file stopping the export. Often for instance its an object with graded transparency settings or complex fills/transparecies. I work around it by creating a bitmap copy of those objects and replacing it for the original. This usually solves the export problems, I've never not been able to fix any export to pdf problems, I've always played around with objects/images of the file and fixed it so that export works. Good luck!