Question

I am having problem with writing PDF files to browser. Other mime types work fine. PDF files become corrupted.

FileInfo file = new FileInfo(Path.Combine(_module.FileDir, _file.FilePath)); Response.ClearContent(); Response.ClearHeaders(); Response.ContentType = _file.ContentType; Response.AppendHeader('Content-Disposition', 'attachment; filename=' + Regex.Replace(_file.FilePath, '\\s', '-')); Response.AppendHeader('Content-Length', file.Length.ToString()); try {     Response.WriteFile(file.FullName);     Response.Flush();     Response.Close(); } catch {     Response.ClearContent(); } 

Answer 1

My problem was with HTTP Module. I was applying White space filter

    HttpApplication app = sender as HttpApplication;     if (app != null && app.Request.RawUrl.Contains('.aspx'))     {         app.Response.Filter = new WhitespaceFilter(app.Response.Filter);     }