diff --git a/samples/custom-config.rb b/samples/custom_config.rb
similarity index 100%
rename from samples/custom-config.rb
rename to samples/custom_config.rb
diff --git a/samples/hello-world.rb b/samples/hello_world.rb
similarity index 100%
rename from samples/hello-world.rb
rename to samples/hello_world.rb
diff --git a/samples/load-images.rb b/samples/load_images.rb
similarity index 100%
rename from samples/load-images.rb
rename to samples/load_images.rb
diff --git a/samples/save-pdf.rb b/samples/save-pdf.rb
deleted file mode 100644
index a1e6aa8..0000000
--- a/samples/save-pdf.rb
+++ /dev/null
@@ -1,13 +0,0 @@
-#!/usr/bin/env ruby
-require 'squib'
-
-Squib::Deck.new(width: 825, height: 1125, cards: 16) do
-  background color: :gray
-  rect x: 38, y: 38, width: 750, height: 1050, x_radius: 38, y_radius: 38
-
-  text str: (1..16).to_a, x: 220, y: 78, font: 'Arial 54'
-
-  save_pdf file: "sample.pdf", margin: 50, gap: 5, trim: 38
-end
-
-puts "Done!"
\ No newline at end of file
diff --git a/samples/text-options.rb b/samples/text_options.rb
similarity index 100%
rename from samples/text-options.rb
rename to samples/text_options.rb
diff --git a/samples/tgc-proofs.rb b/samples/tgc_proofs.rb
similarity index 100%
rename from samples/tgc-proofs.rb
rename to samples/tgc_proofs.rb