diff --git a/PDFWorkflowManager/.vs/PDFWorkflowManager/v16/.suo b/PDFWorkflowManager/.vs/PDFWorkflowManager/v16/.suo
index 3c23758..559ad29 100644
Binary files a/PDFWorkflowManager/.vs/PDFWorkflowManager/v16/.suo and b/PDFWorkflowManager/.vs/PDFWorkflowManager/v16/.suo differ
diff --git a/PDFWorkflowManager/PDFWorkflowManager/MainForm.cs b/PDFWorkflowManager/PDFWorkflowManager/MainForm.cs
index fb329c9..b3be478 100644
--- a/PDFWorkflowManager/PDFWorkflowManager/MainForm.cs
+++ b/PDFWorkflowManager/PDFWorkflowManager/MainForm.cs
@@ -279,7 +279,9 @@ namespace PDFWorkflowManager
                 MessageBox.Show("Origs dir not found.", "Origs dir not found.", MessageBoxButtons.OK, MessageBoxIcon.Error);
                 return;
             }
-            else if (Directory.GetFiles(Path.Combine(txtProjectDir.Text, Properties.Settings.Default.OrigsDir), "*.tif").Length == 0 && Directory.GetFiles(Path.Combine(txtProjectDir.Text, Properties.Settings.Default.OrigsDir), "*.tiff").Length == 0)
+            else if (Directory.GetFiles(Path.Combine(txtProjectDir.Text, Properties.Settings.Default.OrigsDir), "*.tif").Length == 0 
+                && Directory.GetFiles(Path.Combine(txtProjectDir.Text, Properties.Settings.Default.OrigsDir), "*.tiff").Length == 0
+                && Directory.GetFiles(Path.Combine(txtProjectDir.Text, Properties.Settings.Default.OrigsDir), "*.png").Length == 0)
             {
                 MessageBox.Show("Origs files not found.", "Error no TIF files found.", MessageBoxButtons.OK, MessageBoxIcon.Error);
                 return;
@@ -331,6 +333,7 @@ namespace PDFWorkflowManager
 
                 }
 
+
                 if (Directory.Exists(Path.Combine(txtProjectDir.Text, Properties.Settings.Default.WorkOutDir)))
                 {
                     try
@@ -353,6 +356,7 @@ namespace PDFWorkflowManager
                 }
             }
 
+
             if (File.Exists(txtProjectDir.Text + @"\run_simplex_sorting_script.txt"))
             {
                 checkSimplex.Checked = true;
@@ -428,6 +432,13 @@ namespace PDFWorkflowManager
             string[] strFiles = Directory.GetFiles(origsDir, "*.tif");
             int sourceFileCount = strFiles.Length;
 
+            if (sourceFileCount == 0)
+            {
+                strFiles = Directory.GetFiles(origsDir, "*.png");
+                sourceFileCount = strFiles.Length;
+            }
+
+
             int odd = 1;
             int even = sourceFileCount;
             Directory.CreateDirectory(workDir);