MuPDF.WinRT can parse pdf on win8 and wp8,but need user load all whole pdf file to memory,on windows phone memory is very small.
As you know,parse PDF file on win32(x86) platform don't need to load all whole file,only to load require information like position,version,offset ...
Implementation it maybe need to abstract file operation function for different platform.
sorry for my poor english, but i think you can understand it.
MuPDF.WinRT can parse pdf on win8 and wp8,but need user load all whole pdf file to memory,on windows phone memory is very small.
As you know,parse PDF file on win32(x86) platform don't need to load all whole file,only to load require information like position,version,offset ...
Implementation it maybe need to abstract file operation function for different platform.
sorry for my poor english, but i think you can understand it.