diff --git a/.gitignore b/.gitignore
index cb683ab..4d60599 100644
--- a/.gitignore
+++ b/.gitignore
@@ -25,8 +25,6 @@
 *.swp
 *~
 
-# === Output PDFs ===
-*.pdf
 
 # === Latexindent ===
 *.indent.log
diff --git a/slides/main.pdf b/slides/main.pdf
new file mode 100644
index 0000000..15a4657
Binary files /dev/null and b/slides/main.pdf differ