diff --git a/Tasks/PdfBuilder.cs b/Tasks/PdfBuilder.cs
index 85f26b6..10e2448 100644
--- a/Tasks/PdfBuilder.cs
+++ b/Tasks/PdfBuilder.cs
@@ -284,7 +284,7 @@ public class PdfBuilder
 
             // Draw cell border
             var rect = new XRect(x, y, cellWidthPoints, cellHeightPoints);
-            gfx.DrawRectangle(XPens.Black, rect);
+            gfx.DrawRectangle(XPens.Transparent, rect);
 
             // Draw address content if available
             if (!string.IsNullOrEmpty(address)) DrawMarkdownText(gfx, address, x, y, cellWidthPoints, cellHeightPoints);
@@ -304,7 +304,7 @@ public class PdfBuilder
             var cellHeightPoints = MmToPoints(GetCellHeightMm());
 
             var rect = new XRect(x, y, cellWidthPoints, cellHeightPoints);
-            gfx.DrawRectangle(XPens.Black, rect);
+            gfx.DrawRectangle(XPens.Transparent, rect);
         }
         catch (Exception ex)
         {