diff --git a/GitVersionTree/Forms/MainForm.cs b/GitVersionTree/Forms/MainForm.cs
index c1a55af..de202a1 100644
--- a/GitVersionTree/Forms/MainForm.cs
+++ b/GitVersionTree/Forms/MainForm.cs
@@ -16,7 +16,7 @@ public partial class MainForm : Form
     {
         private Dictionary<string, string> DecorateDictionary = new Dictionary<string, string>();
         private List<List<string>> Nodes = new List<List<string>>();
-        
+
         private string DotFilename = Directory.GetParent(Application.ExecutablePath) + @"\" + Application.ProductName + ".dot";
         private string PdfFilename = Directory.GetParent(Application.ExecutablePath) + @"\" + Application.ProductName + ".pdf";
         private string LogFilename = Directory.GetParent(Application.ExecutablePath) + @"\" + Application.ProductName + ".log";
@@ -108,7 +108,7 @@ private void HomepageLinkLabel_LinkClicked(object sender, LinkLabelLinkClickedEv
         {
             Process.Start("https://github.com/crc8/GitVersionTree");
         }
-        
+
         private void ExitButton_Click(object sender, EventArgs e)
         {
             Close();
@@ -323,7 +323,7 @@ private void Generate()
                 DotStringBuilder.Append("  subgraph Decorate" + DecorateCount + "\r\n");
                 DotStringBuilder.Append("  {\r\n");
                 DotStringBuilder.Append("    rank=\"same\";\r\n");
-                if (DecorateKeyValuePair.Value.Trim().Substring(0, 5) == "(tag:")
+                if (DecorateKeyValuePair.Value.Trim().StartsWith("(tag:"))
                 {
                     DotStringBuilder.Append("    \"" + DecorateKeyValuePair.Value.Trim() + "\" [shape=\"box\", style=\"filled\", fillcolor=\"#ffffdd\"];\r\n");
                 }
@@ -344,18 +344,18 @@ private void Generate()
             DotProcess.StartInfo.CreateNoWindow = true;
             DotProcess.StartInfo.RedirectStandardOutput = true;
             DotProcess.StartInfo.FileName = GraphvizDotPathTextBox.Text;
-            DotProcess.StartInfo.Arguments = "\"" + @DotFilename + "\" -Tpdf -Gsize=10,10 -o\"" + @PdfFilename + "\"";
+            DotProcess.StartInfo.Arguments = "\"" + @DotFilename + "\" -Tpdf -o\"" + @PdfFilename + "\"";
             DotProcess.StartInfo.WindowStyle = ProcessWindowStyle.Hidden;
             DotProcess.Start();
             DotProcess.WaitForExit();
 
-            DotProcess.StartInfo.Arguments = "\"" + @DotFilename + "\" -Tps -o\"" + @PdfFilename.Replace(".pdf", ".ps") + "\"";
-            DotProcess.Start();
-            DotProcess.WaitForExit();
-            if (DotProcess.ExitCode == 0)
-            {
-                if (File.Exists(@PdfFilename))
-                {
+            //DotProcess.StartInfo.Arguments = "\"" + @DotFilename + "\" -Tps -o\"" + @PdfFilename.Replace(".pdf", ".ps") + "\"";
+            //DotProcess.Start();
+            //DotProcess.WaitForExit();
+            //if (DotProcess.ExitCode == 0)
+            //{
+                //if (File.Exists(@PdfFilename))
+                //{
 #if (!DEBUG)
                     /*
                     Process ViewPdfProcess = new Process();
@@ -365,12 +365,12 @@ private void Generate()
                     //Close();
                     */
 #endif
-                }
-            }
-            else
-            {
-                Status("Version tree generation failed ...");
-            }
+                //}
+            //}
+            //else
+            //{
+                //Status("Version tree generation failed ...");
+            //}
 
             Status("Done! ...");
         }