The PDF contains charts only, without any written instructions. You need to be familiar with basic sock construction. I don’t explain how to knit heels and toes. The socks are 70 sts. wide; the length of the stranded part between heel and toe is 56 rounds and cannot be changed. Your finished socks will fit feet US size 6-9, depending on your gauge and the length of the toe (you can either decrease toe stitches in every round, or every other round).
As about yarn amount, I used 50 grams (215 m) of each color, but that was just barely enough. Make sure you have at least 75 g (300 m) of MC and CC to be on the safe side.