Under Mac OS X I could have just selected all, copied, and pasted the text into an editor (have done that before). The pics are nice in the original. All those interested should d/l the PDF while it’s available, probably won’t be for long.
I’ve done that too, but I once (pre-computer era) transcribed a 19 page document by hand from the National Archives then retyped it on my Underwood typewriter.