diff --git a/Reference/.gitignore b/Reference/.gitignore
index 27e351a..9ba1771 100644
--- a/Reference/.gitignore
+++ b/Reference/.gitignore
@@ -1 +1,11 @@
 EVT/
+
+# Script files
+*.py
+*.sh
+*.bat
+
+# Cache files
+__pycache__/
+*.pyc
+*.cache
diff --git a/Reference/extract_pdf.py b/Reference/extract_pdf.py
deleted file mode 100644
index b24d35d..0000000
--- a/Reference/extract_pdf.py
+++ /dev/null
@@ -1,29 +0,0 @@
-import pdfplumber
-import sys
-
-
-def extract_pdf_text(pdf_path, output_path):
-    try:
-        with pdfplumber.open(pdf_path) as pdf:
-            text = ""
-            for i, page in enumerate(pdf.pages):
-                page_text = page.extract_text()
-                if page_text:
-                    text += f"=== Page {i + 1} ===\n"
-                    text += page_text + "\n\n"
-
-            with open(output_path, "w", encoding="utf-8") as f:
-                f.write(text)
-            print(f"Extracted {len(pdf.pages)} pages from {pdf_path}")
-            return True
-    except Exception as e:
-        print(f"Error extracting {pdf_path}: {e}")
-        return False
-
-
-if __name__ == "__main__":
-    # Extract CH390 datasheet
-    extract_pdf_text("CH390DS1.PDF", "CH390DS1.txt")
-
-    # Extract STM32F103C8 datasheet
-    extract_pdf_text("stm32f103c8.pdf", "stm32f103c8.txt")