String conversion for elements in NSMutableArray

So I have one NSArray that has names of documents to be presented in a UITableView. The NSStrings in the NSArray have spaces so an entry would look like, "John Smith". Then I have pdfs that correspond to each of the table entries. These pdf entries are not the same name. They would be something like, "JohnSmith开发者_Go百科.pdf". I created a method to basically convert the names to the pdfs in order to present the appropriate pdfs. In my method, I basically hard coded the values

NSUInteger loopCount = 0;
for ( ; loopCount < [array count]; loopCount++) {
    if ([[array objectAtIndex:loopCount] isEqualToString:@"John Smith"]) {
        [array replaceObjectAtIndex:loopCount withObject:@"JohnSmith.pdf"];
    }
}

Is there a better way to do this? That's all I could think of since the data was already made to have different names. Thx.

maybe you can use something like this:

NSString *filename = [[name stringByReplacingOccurrencesOfString:@" " withString:@""] stringByAppendingPathExtension:@"pdf"];

 NSUInteger loopCount = 0;
 for ( ; loopCount < [array count]; loopCount++) {
    NSString* name = [array objectAtIndex:loopCount];
    [array replaceObjectAtIndex:loopCount withObject:[NSString stringWithFormat@"%@.pdf", [name stringByReplacingOccurrencesOfString:@" " withString:@""]]];
}