Sending documents cross-platform is increasingly common these days, MAC to PC for example, exporting your document as a Postscript file (.ps), and then creating a PDF through Acrobat Distiller is the most comprehensive way. In order to make PDF files print correctly the Distiller job options must be properly configured. Attention must be paid to the inclusion of fonts and high resolution selection of graphics.
HOW TO GUIDE: Export PDFs with Adobe Indesign (CS3 - CS6) (PDF)
Helpful Hint: Always preview an exported PDF before sending.