--- upload.module	26 Oct 2006 05:31:14 -0000	1.136
+++ upload.module	14 Nov 2006 00:32:29 -0000
@@ -275,7 +275,7 @@
         $name = mime_header_encode($file->filename);
         $type = mime_header_encode($file->filemime);
         // Serve images and text inline for the browser to display rather than download.
-        $disposition = ereg('^(text/|image/)', $file->filemime) ? 'inline' : 'attachment';
+        $disposition = ereg('^(text/|image/|application/pdf)', $file->filemime) ? 'inline' : 'attachment';
         return array(
           'Content-Type: '. $type .'; name='. $name,
           'Content-Length: '. $file->filesize,