path of the directory where ibooks's pdf stored ios -


i need existing pdf files in device , upload selected pdf server. i've added 1 pdf file ibooks , tried searching file in directory using code:

nsarray *paths = nssearchpathfordirectoriesindomains(nsdocumentdirectory, nsuserdomainmask, yes); nsstring *documentsdirectory = [paths objectatindex:0];  nsfilemanager *filemanager = [nsfilemanager defaultmanager]; //nserror *error = nil; nsarray *filesatpath = [filemanager contentsofdirectoryatpath:documentsdirectory error:nil]; nslog(@"filesatpath:%@",filesatpath); (nsstring *path in filesatpath) {     nslog(@"add..");     if ([path rangeofstring:@".pdf"].length > 0)     {         //do whatever want pdf file         nslog(@"pdf: %@",path);     } }

but log shows empty array, please tell me, there other method pdf list in device , select 1 upload in server.


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