You can now embed PDF files directly into your posts. Use the button in the toolbar to insert the tags and then simply paste the link to the PDF between them:
[noparse][pdf]http://gmtnation.com/gmt_parts.pdf[/pdf][/noparse]
[pdf]http://gmtnation.com/gmt_parts.pdf[/pdf]
[noparse][pdf]http://gmtnation.com/gmt_parts.pdf[/pdf][/noparse]
[pdf]http://gmtnation.com/gmt_parts.pdf[/pdf]