[svat]

I'm the author and I just meant I had left behind a small uncommitted diff back when I stopped working on it, and I didn't bother to read the diff before committing. I actually understand it just fine, on second look…

Overall, at least so far, I haven't encountered much "WTF" dealing with PDFs actually. The spec (especially the Adobe version: the ISO version based on it is only slightly different but feels much worse) is quite pleasant to read. There are some warts from backward compatibility with earlier poor decisions, but not too many of them. And while it's surprising what different PDF programs will produce as long as any PDF reader in existence happens to accepts it (Hyrum's law) (e.g. in this example, the dictionary key having a space in it), for my purposes it hasn't been a big deal as I'm only trying to do the first level of parsing, and when even that is problematic I can happily just declare the PDF malformed.