[PF]What's the meaning of familiar feats?

[isildur]

Like critcal conduit, or spell sponge. Familars can't get HD(just have HD) so they can't get feat. then..... WTF?

[Deathkeeper]

I personally always give familiars 1 feat since they're technically level 1 creatures. And they might have been intended to be used for the familiar archetypes. Which I didn't know existed until recently.

[isildur]

And they might have been intended to be used for the familiar archetypes.

To make homebrew familiar archetypes?

[Keneth]

All familiars have at least one feat from racial HD, and improved familiars have 2-3 feats. Since they're intelligent creatures, they can at the very least retrain them if your GM doesn't allow you to select their feats when you acquire them.

[Psyren]

Animal Archive (the book Familiar Feats comes from) has a rule that says you can trade out a basic familiar's starting feat for one of the ones in the book. (This is Weapon Finesse in most cases.)

As Keneth mentioned, more advanced familiars have more HD and thus more feats. You can trade out all of these for familiar feats when you form the link.