How to move pdf open in webbrowser?

Question

C++ / C#

I open the next file, do move () - it falls out with IOException "the resource is occupied by another process.

files = new DirectoryInfo(path).GetFiles("*.pdf");
webBrowser1.Navigate(files[0].Current.FullName); 
webBrowser1.Navigate(files[1].Current.FullName);
File.Move(currentFileInfo.FullName, outputFile);

Answer 1

No way, copy the file and wait for the browser to close to delete the remaining file.