How to open a PDF file that is also a project resource?

Question

I have a PDF file that I have imported in as a resource into my project. The file is a help document so I want to be able to include it with every deployment. I want to be a

Answer 1

//create a temporal file
string file = Path.GetTempFileName() + ".pdf";
//write to file
File.WriteAllBytes(file, Properties.Resources.PDF_DOCUMENT);
//open with default viewer
System.Diagnostics.Process.Start(file);

Answer 2

Check this out easy to open pdf file from resource.

private void btnHelp_Click(object sender, EventArgs e)
    {            
        String openPDFFile = Environment.GetFolderPath(Environment.SpecialFolder.MyDocuments) + @"\HelpDoc.pdf";//PDF DOc name
        System.IO.File.WriteAllBytes(openPDFFile, global::ProjectName.Properties.Resources.resourcePdfFileName);//the resource automatically creates            
        System.Diagnostics.Process.Start(openPDFFile);             
    }