I just tried FF2 and FF3 the .VLM files download just fine but the .PDF files would not.
try these pdfs I uploaded. Click link or open it in a new window, scroll down to the blue link labelled Click here to Download, either click it or right-click and select save target as... and save to harddrive.
Final Fantasy II manual
Final Fantasy III manual
More specifically, I just realized that it's only Final Fantasy 2 and 3 that I'm having that problem with. Anyone else experience the same thing?