Yes, here's what to do!
1) Become a backer for the Player's Companion if you haven't already, selecting whichever pledge is appropriate to the listed rewards you want to receive.
2) Increase your pledge by $10 if you want the Adventurer Conqueror King System PDF right away, or by $40 if you want ACKS in PDF now and in hardback as soon as it's available.
3) Visit our fulfillment partner Game Salute and http://shop.gamesalute.com/pages/adventurer-conqueror-king-free-pdf-upgrade-offer%20 to let us know that you've increased your pledge specifically to get one of the ACKS rewards; you'll then get a coupon to download the PDF, and will be shipped the ACKS hardback as soon as it's available. (We'll contact you by email if additional shipping charges apply.)
Here is the URL to use to fill out that form: http://shop.gamesalute.com/pages/adventurer-conqueror-king-free-pdf-upgrade-offer. ** Filling out this form generates a coupon which you can use to get the PDF for free, but you have to go through the checkout process and use that coupon. Follow the link once you complete the form! **
Note that the "Two Sought Adventure" and "Pair of Kings" rewards already include the Adventurer Conqueror King and Player's Companion combinations. Adding $10 or $40 to these rewards would get you additional copies of the PDF or hardback+PDF.