When exporting from PCStitch there are two things to look at.
Symbol Font
In PCStitch you can choose the font to use for symbols. Do NOT use “PCStitch Symbols 3”. We recommend using either “PCStitch Symbols” or “PCStitch Symbols 2”
PDF printer
When using the print option to save a PDF from PC Stitch it makes a difference depending on the PDF printer used. Right now I recommend PDF Creator as the best choice but I also know people have great success with Foxit Reader PDF Printer.