diff --git a/.gitignore b/.gitignore
index 6f66c74..ba4df6d 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1 +1,2 @@
-*.zip
\ No newline at end of file
+*.zip
+*.pdf
\ No newline at end of file
diff --git a/week1/doc.pdf b/week1/doc.pdf
deleted file mode 100644
index 0e61803..0000000
Binary files a/week1/doc.pdf and /dev/null differ
diff --git a/week2/doc.pdf b/week2/doc.pdf
deleted file mode 100644
index 1a13b54..0000000
Binary files a/week2/doc.pdf and /dev/null differ
diff --git a/week3/doc.pdf b/week3/doc.pdf
deleted file mode 100644
index dfdde9f..0000000
Binary files a/week3/doc.pdf and /dev/null differ
diff --git a/week4/doc.pdf b/week4/doc.pdf
deleted file mode 100644
index 2c21800..0000000
Binary files a/week4/doc.pdf and /dev/null differ