Send files from pc to device

[houssem]

Good day iOS developers

I am working on a PDF/doc reader for iPad, i was able to open and view pdf files from the documents library and view them on a uiwebview. But now i am blocked with the following: how can i download and open files from network, as does the application "GoodReader" : you can access the iPad using its IP adress and upload the desired document using a web interface then view it on the iPad.
I thing this is possible using sockets but I am not very good on network programming. Please could you help me with some tutorials, documentation or samples to help me achieve this? every help would be well appreciated.

Thanks in advance