diff --git a/pdf/.gitignore b/pdf/.gitignore
deleted file mode 100644
index c1b0730e..00000000
--- a/pdf/.gitignore
+++ /dev/null
@@ -1 +0,0 @@
-x
\ No newline at end of file
diff --git a/pdf/README.md b/pdf/README.md
new file mode 100644
index 00000000..d6799076
--- /dev/null
+++ b/pdf/README.md
@@ -0,0 +1,3 @@
+# PDF
+
+For your reading
\ No newline at end of file