diff --git a/PROMS/VEPROMS User Interface/frmPDFStatusForm.cs b/PROMS/VEPROMS User Interface/frmPDFStatusForm.cs
index 11aa54ad..e257aaaf 100644
--- a/PROMS/VEPROMS User Interface/frmPDFStatusForm.cs	
+++ b/PROMS/VEPROMS User Interface/frmPDFStatusForm.cs	
@@ -89,7 +89,8 @@ namespace VEPROMS
 			InitializeComponent();
 			// if the version number of PROMS is 1.0, then we are running a Demo version.
 			// When running a Demo version, force a "Sample" watermark when printing.
-			MyPromsPrinter = new PromsPrinter(myItem, rev, (VlnSettings.ReleaseMode.Equals("DEMO")) ? "Sample" : watermark, debugOutput, origPgBrk, pdfPath + @"\Compare", false, overWrite, cbd, pdfFile, insertBlankPages, allOrAuto,Prefix,saveLinks,removeTrailingHardReturnsAndManualPageBreaks, blankPageText, DidAll);
+			// B2020-022 append a ".pdf" extension if the file name does on have one.
+			MyPromsPrinter = new PromsPrinter(myItem, rev, (VlnSettings.ReleaseMode.Equals("DEMO")) ? "Sample" : watermark, debugOutput, origPgBrk, pdfPath + @"\Compare", false, overWrite, cbd, (pdfFile.ToUpper().EndsWith(".PDF"))?pdfFile:pdfFile+".pdf", insertBlankPages, allOrAuto,Prefix,saveLinks,removeTrailingHardReturnsAndManualPageBreaks, blankPageText, DidAll);
 			MyPromsPrinter.PromsVersion = (showPROMSVer) ? AboutVEPROMS.PROMSVersion : ""; //C2018-009 print PROMS version
 			PDFPath = pdfPath;
 			this.Text = "Creating PDF of " + myItem.DisplayNumber;