Goes for manuals too. When manuals started being released in PDF format I thought "How wonderful, and so easy to keep up-to-date! Just edit and replace the file in the DL Library!" I later discovered that a translation of every manual needs to be prepared for every country that a product is marketed in, and for every update of said manual. It's the LAW! It's INCREDIBLY expensive! So, the next time you're trying to figure something out using a manual that seems to have been written for a similar but different product... or wondering why a great product isn't available in your country...