diff --git a/.gitignore b/.gitignore
index 5391d87..2c617d8 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +1,6 @@
+# Do not upload folder, auto created at each run
+pdf/
+
 # Byte-compiled / optimized / DLL files
 __pycache__/
 *.py[cod]
@@ -135,4 +138,4 @@ dmypy.json
 .pytype/
 
 # Cython debug symbols
-cython_debug/
\ No newline at end of file
+cython_debug/