bin: add script to sign pdf and shrink images

.local/bin/scripts/shrinkimg

@@ -0,0 +1,10 @@
+#!/bin/sh
+while true
+  do case $1 in
+    (-o) out=$2; shift 2;;
+    (-q) quality=$2; shift 2;;
+    (*) break;;
+  esac
+done
+magick '$@' -strip -interlace Plane -define jpeg:dct-method=float -sampling-factor 4:2:0 -gaussian-blur 0.05 -quality "${quality:-85}" "$out"
+

.local/bin/scripts/sign

@@ -0,0 +1,15 @@
+#!/bin/sh
+signature=$(pass tools/signature)
+
+# TODO make filenames unique and don't rerun unneccessarily
+tmp_base=/tmp/sign
+mkdir -p $tmp_base
+tmp_signed=$tmp_base/$1_last-signature.pdf
+tmp_reversed=$tmp_base/$1_reverse.pdf
+sig=$tmp_base/signature_offset.pdf
+result="${1%.pdf}_signed.pdf"
+pdfjam "$signature" --outfile "$sig" --offset "${2:-0}pt ${3:-0}pt" --papersize "{595pt, 842pt}" --noautoscale true --scale "${4:-1}"
+pdfjam "$1" last "$sig" --outfile "$tmp_signed" --delta "0 -842pt" --nup "1x2" --fitpaper true
+pdfjam "$1" last-1 --outfile "$tmp_reversed"
+pdfjam "$tmp_reversed" last-2 "$tmp_signed" --outfile "$result"
+xdg-open "$result"