diff --git a/core/pdf_exporter/writer.py b/core/pdf_exporter/writer.py
index baeea18..f9ffbe6 100644
--- a/core/pdf_exporter/writer.py
+++ b/core/pdf_exporter/writer.py
@@ -30,7 +30,7 @@ from .sizing import (
     LegendSizing,
     MM_TO_PT,
 )
-from .pdf_utils import PdfStream, escape_pdf_text
+from .pdf_utils import PdfStream
 
 
 def render_technical_header_table(
@@ -821,7 +821,3 @@ class export_mesh_to_pdf:
             f.write(b"startxref\n")
             f.write(f"{xref_offset}\n".encode("utf-8"))
             f.write(b"%%EOF\n")
-
-
-# Backward compatibility alias
-export_wireframe_to_pdf = export_mesh_to_pdf