diff --git a/.gitignore b/.gitignore
index 7d5821e..b9d14ad 100644
--- a/.gitignore
+++ b/.gitignore
@@ -2,4 +2,4 @@
 node_modules/
 output/book.html
 # Keep the PDF in git if you want to track versions, otherwise add:
-# output/kaleidoskop.pdf
+output/kaleidoskop.pdf
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diff --git a/images/01/scene-2.png b/images/01/scene-2.png
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diff --git a/images/01/scene-4.png b/images/01/scene-4.png
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diff --git a/output/kaleidoskop.pdf b/output/kaleidoskop.pdf
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