diff --git a/RenameInvoice.ps1 b/RenameInvoice.ps1
index b420e51..73b9928 100644
--- a/RenameInvoice.ps1
+++ b/RenameInvoice.ps1
@@ -1,4 +1,4 @@
-# Ensure 'pdftotext.exe' is available in your PATH or specify full path here
+# Ensure 'pdftotext.exe' is available in your PATH or specify the full path here
 $pdftotextPath = "pdftotext.exe"
 
 # Get all PDF files in the script's current directory
@@ -17,13 +17,12 @@ foreach ($pdfFile in $pdfFiles) {
     # Initialize Bill To name
     $billToName = $null
 
-    # Improved search for the line containing 'Bill to' (allowing whitespace variations)
+    # More robust method: look for "Bill to" line and grab the next meaningful line
     for ($i = 0; $i -lt $lines.Length; $i++) {
-        if ($lines[$i] -match '^\s*Bill\s+to\s*$') {
-            # Next non-empty line is the name
+        if ($lines[$i].Trim() -match '^Bill\s+to$') {
             for ($j = $i + 1; $j -lt $lines.Length; $j++) {
                 $nextLine = $lines[$j].Trim()
-                if ($nextLine -ne "") {
+                if (![string]::IsNullOrWhiteSpace($nextLine)) {
                     $billToName = $nextLine
                     break
                 }
@@ -33,10 +32,10 @@ foreach ($pdfFile in $pdfFiles) {
     }
 
     if ($billToName) {
-        # Clean up name (remove invalid filename chars)
+        # Clean name from invalid filename characters
         $cleanName = ($billToName -replace '[\\/:*?"<>|]', '').Trim()
 
-        # Construct new filename safely
+        # Construct safe filename
         $newFileName = "$cleanName 2025 calendar ad invoice.pdf"
         $destPath = Join-Path -Path $pdfFile.DirectoryName -ChildPath $newFileName