Those instructions are indeed of low quality. I haven't found a downloadable copy of better quality than that either.
Unless you can find someone with a physical copy that is willing to scan them for you, or can convince the Lego company to dig you up a higher quality pdf, your best option appears to be buying a physical copy on the secondary market, like on Bricklink or Brickowl eg.
As an alternative, there are some Youtube videos showing the full instructions, if that's up your alley. Just look for "lego 7784 instructions".
On the other hand, your question does make it seem like you're really interested in the list of parts, and not so much the building instructions. In that case, there are several websites that can provide that information. A selection :