#!/bin/sh
 
-ps2pdf14 \
-    -dPDFSETTINGS=/prepress \
+gs \
+    -dBATCH -dNOPAUSE -dSAFER \
+    -sDEVICE=pdfwrite -dPDFA \
+    -dPDFSETTINGS=/default \
+    -dAutoRotatePages=/None \
+    -sColorConversionStrategy=DeviceRGB \
     -dAutoFilterColorImages=false -dColorImageFilter=/FlateEncode \
     -dAutoFilterGrayImages=false -dGrayImageFilter=/FlateEncode \
-    -dAutoFilterMonoImages=false -dMonoImageFilter=/CCITTFaxEncode \
-    -dCompressPages=true -dUseFlateCompression=true \
-    -dEmbedAllFonts=true -dSubsetFonts=false \
-    -dPreserveEPSInfo=true \
-    -dDoThumbnails=true $1 $2
+    -dMonoImageFilter=/FlateEncode \
+    -dOptimize=true \
+    -sOutputFile="$1".pdf "$1"