diff --git a/Global/Images.gitignore b/Global/Images.gitignore
index 97dcdbe6..a1f966ce 100644
--- a/Global/Images.gitignore
+++ b/Global/Images.gitignore
@@ -61,3 +61,9 @@
 # 3D Images
 *.3dm
 *.max
+
+# Netpbm
+*.pbm
+*.pgm
+*.pnm
+*.ppm