docker/paperless/README.md

Paperless ngx

Paperless ngx ist ein von der Community unterstütztes Open-Source-Dokumentenverwaltungssystem, das Ihre physischen Dokumente in ein durchsuchbares Online-Archiv umwandelt, sodass Sie weniger Papier benötigen.

Paperless ngx

HowTo

---

/etc/fstab Mount zu Scanner Verzeichniss

192.168.0.102:/mnt/pool1/scanner /opt/paperless/consume nfs auto 0 0

gegebenfalls noch die NFS Tools installieren

apt install nfs-common

Script für das entfernen von leeren Seiten

Added /usr/src/paperless/scripts/pre-consume.sh

#!/bin/sh
set -x
# Remove blank pages
/scripts/remove-blank-pages.sh

Added /usr/src/paperless/scripts/remove-blank-pages.sh

#!/bin/bash
# set -x -e -o pipefail
set -e -o pipefail
export LC_ALL=C
# IN="$1"
IN="$DOCUMENT_WORKING_PATH"
# Check for PDF format
TYPE=$(file -b "$IN")
if [ "${TYPE%%,*}" != "PDF document" ]; then

&2 echo "Skipping $IN - non PDF [$TYPE]."
exit 0
fi

# PDF file - proceed
# PAGES=$(pdfinfo "$IN" | grep ^Pages: | tr -dc '0-9')
PAGES=$(pdfinfo "$IN" | awk '/Pages:/ {print $2}')

&2 echo Total pages $PAGES

# Threshold for HP scanners
THRESHOLD=1
# Threshold for Lexmar MC2425
# THRESHOLD=0.8
non_blank() {
for i in $(seq 1 $PAGES) ; do
PERCENT=$(gs -o -  -dFirstPage=${i} -dLastPage=${i} -sDEVICE=ink_cov "${IN}" | grep CMYK | nawk 'BEGIN { sum=0; } {sum += $1 + $2 + $3 + $4;} END {  printf "%.5f\n", sum } ')
>&2 echo -n "Color-sum in page $i is $PERCENT: "
if awk "BEGIN { exit !($PERCENT > $THRESHOLD) }"; then
echo $i
>&2 echo "Page added to document"
else
>&2 echo "Page removed from document"
fi
done
}
NON_BLANK=$(non_blank)
if [ -n "$NON_BLANK" ]; then
NON_BLANK=$(echo $NON_BLANK  | tr ' ' ",")
qpdf "$IN" --warning-exit-0 --replace-input --pages . $NON_BLANK --
fi