DjVu : 3211 KByte, 13 KByte/page [ASCII Layer] PDF : 35099 KByte, 138 KByte/page Postscript : 44876 KByte, 177 KByte/page
DjVu : 72 KByte, 12 KByte/page [ASCII Layer] PDF : 425 KByte, 71 KByte/page Postscript : 750 KByte, 125 KByte/page
DjVu : 117 KByte, 8 KByte/page [ASCII Layer] PDF : 685 KByte, 48 KByte/page Postscript : 1057 KByte, 75 KByte/page
To view the DjVu files. it is necessary that a DjVu viewer is installed on your system. This can be downloaded from DjVuLibre (free software).