Try like this below:-
NSString *path=[NSSearchPathForDirectoriesInDomains(NSApplicationSupportDirectory, NSUserDomainMask, YES)lastObject];
NSString *testUrl =[path stringByAppendingPathComponent:@"/LotusNotesData/source.rtf"];
//
if ([[NSFileManager defaultManager]fileExistsAtPath:testUrl]) {
NSLog(@"yes");
}
//Below destination is folder name which should be exist on your machine or else you can create programmatically as well
NSString *testUrl2 = @"/Users/home/Documents/destination";
NSLog(@"%@",testUrl);
NSLog(@"%@",testUrl2);
NSError *err=nil;
//Now we are copying the souce path to destination folder with appending file name (it can be any your name becuase file manager copy source file contents to your destination file contents)
//Here given file name is a source.rtf where you can give any your name. Also this is for copying source contents to destination contents
NSFileManager *fm=[NSFileManager defaultManager];
if ([fm copyItemAtPath:testUrl toPath:[testUrl2 stringByAppendingPathComponent:@"source.rtf"] error:&err])
{
NSLog(@"success");
}
else
{
NSLog(@"%@",[err localizedDescription]);
}