1

1 files changed, 30 insertions, 0 deletions

diff --git a/scripts/.local/bin/compress-pdf b/scripts/.local/bin/compress-pdf
new file mode 100755
index 0000000..d1511d6
--- /dev/null
+++ b/scripts/.local/bin/compress-pdf
@@ -0,0 +1,30 @@
+#!/bin/sh
+
+# https://askubuntu.com/questions/113544/how-can-i-reduce-the-file-size-of-a-scanned-pdf-file
+#-dPDFSETTINGS=/screen lower quality, smaller size. (72 dpi)
+#-dPDFSETTINGS=/ebook for better quality, but slightly larger pdfs. (150 dpi)
+#-dPDFSETTINGS=/prepress output similar to Acrobat Distiller "Prepress Optimized" setting (300 dpi)
+#-dPDFSETTINGS=/printer selects output similar to the Acrobat Distiller "Print Optimized" setting (300 dpi)
+#-dPDFSETTINGS=/default selects output intended to be useful across a wide variety of uses, possibly at the expense of a larger output file
+PDFSETTINGS="/printer"
+image_resolution="300"
+
+basename=$(echo "$1" | cut -f 1 -d '.')
+
+# full list of parameters
+# https://ghostscript.com/docs/9.54.0/VectorDevices.htm
+
+#-dCompatibilityLevel=1.4 \
+gs  -q -dNOPAUSE -dBATCH -dSAFER \
+    -sDEVICE=pdfwrite \
+    -dPDFSETTINGS="$PDFSETTINGS" \
+    -dEmbedAllFonts=true \
+    -dSubsetFonts=true \
+    -dColorImageDownsampleType=/Bicubic \
+    -dColorImageResolution="$image_resolution" \
+    -dGrayImageDownsampleType=/Bicubic \
+    -dGrayImageResolution="$image_resolution" \
+    -dMonoImageDownsampleType=/Bicubic \
+    -dMonoImageResolution="$image_resolution" \
+    -sOutputFile="$basename.compressed.pdf" \
+     "$1"