diff --git a/convert_all.sh b/convert_all.sh
new file mode 100755
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--- /dev/null
+++ b/convert_all.sh
@@ -0,0 +1,6 @@
+#!/bin/bash
+DRAW_IO="/Applications/draw.io.app/Contents/MacOS/draw.io"
+
+for file in diagrams/*.drawio; do
+    $DRAW_IO -x -f png --scale 2.5 -o "${file%.drawio}.png" $file
+done
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diff --git a/diagrams/key_exchange.png b/diagrams/key_exchange.png
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diff --git a/diagrams/overview.png b/diagrams/overview.png
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diff --git a/diagrams/protocol.png b/diagrams/protocol.png
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diff --git a/diagrams/transcript.png b/diagrams/transcript.png
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