Good question. As it turns out there are really only 16 PDF documents. Combined, there may be 1,600 pages in total, but to speak of 1,600 documents seems kind of misleading to me, especially since most of the PDFs are maps and peace talk minutes.
[1] http://english.aljazeera.net/palestinepapers/2011/01/2011122...
"There are nearly 1,700 files, thousands of pages of diplomatic correspondence detailing the inner workings of the Israeli-Palestinian peace process."
That suggests we'll end up with more than 1,600 files, not just a few files totaling 1,600 pages.