blob: 20ca86c3fddc11efc9dfe8b96bbd2bfbc115f7ef (
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#!/bin/sh
set -euo pipefail
DPI="${DPI:-250}" # override: DPI=200 ./convert-pdfs
JPEG_QUALITY="${Q:-85}" # override: Q=80 ./convert-pdfs
for f in *.pdf; do
[ -f "$f" ] || continue
name="${f%.pdf}"
tmpdir="$(mktemp -d "${name}.XXXXXX")"
echo "Converting $f (DPI=$DPI, Q=$JPEG_QUALITY)..."
cleanup() { rm -rf "$tmpdir"; }
trap cleanup EXIT INT TERM
pdftoppm -jpeg -r "$DPI" -jpegopt "quality=$JPEG_QUALITY" "$f" "$tmpdir/page"
if ! ls "$tmpdir"/page-*.jpg >/dev/null 2>&1; then
echo "ERROR: pdftoppm produced no JPEG pages for $f"
exit 1
fi
tmpcbz="${name}.cbz.tmp"
(cd "$tmpdir" && zip -q -r "../$tmpcbz" .)
if [ ! -s "$tmpcbz" ]; then
echo "ERROR: Failed to create CBZ for $f"
exit 1
fi
if [ -e "${name}.cbz" ]; then
echo "ERROR: ${name}.cbz already exists"
exit 1
fi
mv "$tmpcbz" "${name}.cbz"
trap - EXIT
cleanup
echo "✔ Converted $f → ${name}.cbz"
done
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