IssueIf Calibri font is used in ARCHICAD, the ligature fonts (when two characters merge for better readability: http://en.wikipedia.org/wiki/Typographic_ligature) are not visible in the saved PDF.
CauseThe problem with Calibri font type is related to PDF engine that we license. The manufacturer of the engine promised a fix in one of their updates.
SolutionIt is not possible to turn off ligature. On Windows XP it only occurs when asian fonts are enabled (Control Panel -> Regional and Language Options -> Languages -> Install files for East Asian languages). Disabling this option turns off ligature in Calibri font, so that is a workaround on XP. This workaround does not work on Windows 7.
A Font embedding problem in the PDF engine causes that certain (not widely used) font types appear white in the output file.
CauseThere are too dense fills on the piece of project you want to print. Thus simply too many lines will be generated during printing - this is what takes a long time. These fills can be made too dense either by distorting them or by editing their vectorial pattern in the Options Menu Element Attributes/Fill Types. In general ARCHICAD detects such dense fills but only in the case of standard fills, not distorted fills. If a fill is found to be too dense, it is replaced by a solid one during printing to avoid such cases.
SolutionIf you face such problems when printing, check your fills, especially the distorted ones.
CauseWhen transparent solid fills (also known as "percentage fills") overlay other fills, the transparency might appear correctly on screen and in PDF, while it looks bad in printing. The reason is the data conversion that occurs while the data is passed to the printer.