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Diffstat (limited to '.zsh_functions/henkspngpostproc')
| -rw-r--r-- | .zsh_functions/henkspngpostproc | 41 |
1 files changed, 23 insertions, 18 deletions
diff --git a/.zsh_functions/henkspngpostproc b/.zsh_functions/henkspngpostproc index c35650d..e721f4c 100644 --- a/.zsh_functions/henkspngpostproc +++ b/.zsh_functions/henkspngpostproc @@ -1,25 +1,30 @@ +setopt PIPE_FAIL + local resize_by local img resize_by="$1" shift -echo "Creating Directories …" -mkdir --parents resized/pngnqed/optipnged optimized for img in $* do - echo "Resizing image …" - convert -resize $resize_by% "$img" "resized/$img" - echo "Running pngnq …" - pngnq -s1 -f -d "resized/pngnqed" -e .png "resized/$img" - echo "Running optipng …" - optipng -force -out "resized/pngnqed/optipnged/$img" "resized/pngnqed/$img" - echo "Moving final image to directory 'optimized' …" - cp --verbose --interactive --target-directory=optimized/ "resized/pngnqed/optipnged/$img" - echo "Removing temporary images …" - #rm --verbose --interactive \ - rm --verbose \ - "resized/$img" \ - "resized/pngnqed/$img" \ - "resized/pngnqed/optipnged/$img" - img2pdf --output $(basename $img .png).pdf optimized/${img} + echo "Processing ${img} ..." + # mostly to remove the alpha channel so ocrmypdf can work with it + # does not seem to work all the time, so 'convert' is used as well below + # still nice to optimize + optipng "${img}" + if [ $? -ne 0 ] + then + echo "optipng failed" + return + fi + # resize + # and remove alpha channel so ocrmypdf can work with it + # ocrmypdf does the quantization of the png which reduces size drastically + convert -resize $resize_by% -alpha off "$img" - \ + | ocrmypdf - "$(basename $img .png).pdf" + if [ $? -ne 0 ] + then + echo "convert or ocrmypdf failed" + return + fi done -rmdir --parents resized/pngnqed/optipnged + |