To print to a .pdf file, you need to add a Adobe postscript printer instance in Printer Catalog. This applies to printing when the advanced option XS_USE_OLD_PLOT_DIALOG is set to TRUE.
The instructions below apply when you are printing using Printer Catalog printer instances, which means that you have set the advanced option XS_USE_OLD_PLOT_DIALOG to TRUE in File menu > Settings > Advanced options > Printing.
On the File menu, click Printing > Choose printer.
In Printer Catalog , click Add.
Enter a new printer instance name followed immediately (no spaces) by @ and the folder where Adobe Distiller should look for files. For example, A4_PDF@c:\plots\pdf\in\.
Click Add.
Click Browse... to access the Select Printer dialog box. Click the Adobe postscript printer driver and then OK.