如何从数据库中的阅读器中显示pdf文件

Question

Hello I am working in windows application "winforms" in this I have successfully save pdf file in database now I want to display that in adobe reader which i have been added from toolbox what should I need to do, thats why I can able to view pdf in adobe reader. I already try to display pdf file to reader but nothing display.

Here is my code:

{
        con.Open();
        SqlCommand command1 = new SqlCommand("select PDFFILE from help ;", con);
        DataTable dt = new DataTable();
        byte[] img = (byte[])command1.ExecuteScalar();
        MemoryStream ms = new MemoryStream(img);
        string s = System.Text.Encoding.UTF8.GetString(img);

        axAcroPDF1.LoadFile(s);
        con.Close();         
}

Answer 1

If the adobe control only takes a filename, you will need to save the pdf as a file first. System.IO.Path will get you a temporary path. Using a guid will also prove useful for random names.

If you don't want that, you may use the PdfiumViewer , which is Googles Pdfium wrapped as a .NET control. Works fine, takes streams as load parameter and is easy to use. You can get both the PdfiumViewer and the required Pdfium-DLLs via NuGet. Plus, you won't be dependent on the installed adobe version any more.