When i go for a hex encoding on some files, Sublime doesn’t show the endings of these files. Look at this:

It is what Sublime shows.
Here what it should be:

And i can find that place, where Sublime stops.

Funny, that i had just the same result as Sublime, when i tried to read the file and write it without changes immediatly. It stuck at the same place. Well, turned out i haven’t close stream in the end and so the buffer haven’t been pushed for the last time. Maybe you have some kind of error like this.
here’s the file from pictures https://dl.dropbox.com/u/4307907/Sublime/out.pdf