Please remember to read the license before using them outside of your home or for non-private use. The font sizes and margins of these files are smaller than in the documentation shipped with the PowerPack to allow for fewer printed pages. Make sure your printer is properly setup to avoid missing some of the contents.
Files are in compressed formats to allow for quicker downloads.
The final uncompressed size is also provided to notify you of the storage space required on a hard drive. Provides higher compression but doesn't work with as many decompression utilities. On Linux, gv may not correctly display some pages of the PS versions. This is a bug of gv, gs and lpr do work correctly.