Preparing image for Facebook

Processing
6

I don’t use facebook, but when I have to strip down an image to the minimum bearable, I normally use jpegoptim. On a mac you can easily install it with homebrew. For convenience I use it within an automator app and an open with shortcut that gets things done quickly from the finder. From the top of my head, there’s also ImageOptim (app) which is quite nice - based on it image_optim - they also have some png alpha thingie, and caesium for mac and win. For critical compression/colour/accuracy maximum ratio, the best I’ve seen is TinyPanda/Jpeg - you can compress till 20 files online, their PS plugin’s expensive!!
BTW, as this site’s user level is quite high I feel the need to be straight-forward: these are 2 cents of someone who knows absolutelly nothing about code, but has two eyes and follows copy paste ancient tradition :robot: {no fat budha}

Somethin’ of the sorts (quality 71) // notice there’s also a size option

for f in "$@" do jpegoptim -d/OPTIM_output -f -m71 -b -P -v --strip-all --all-progressive "$f" echo "$f" done

jpegoptim --help

-d<path>, --dest=<path>
                    specify alternative destination directory for 
                    optimized files (default is to overwrite originals)
  -f, --force       force optimization
  -h, --help        display this help and exit
  -m<quality>, --max=<quality>
                    set maximum image quality factor (disables lossless
                    optimization mode, which is by default on)
                    Valid quality values: 0 - 100
  -n, --noaction    don't really optimize files, just print results
  -S<size>, --size=<size>
                    Try to optimize file to given size (disables lossless
                    optimization mode). Target size is specified either in
                    kilo bytes (1 - n) or as percentage (1% - 99%)
  -T<threshold>, --threshold=<threshold>
                    keep old file if the gain is below a threshold (%)
  -b, --csv         print progress info in CSV format
  -o, --overwrite   overwrite target file even if it exists (meaningful
                    only when used with -d, --dest option)
  -p, --preserve    preserve file timestamps
  -P, --preserve-perms
                    preserve original file permissions by overwriting it
  -q, --quiet       quiet mode
  -t, --totals      print totals after processing all files
  -v, --verbose     enable verbose mode (positively chatty)
  -V, --version     print program version

  -s, --strip-all   strip all markers from output file
  --strip-none      do not strip any markers
  --strip-com       strip Comment markers from output file
  --strip-exif      strip Exif markers from output file
  --strip-iptc      strip IPTC/Photoshop (APP13) markers from output file
  --strip-icc       strip ICC profile markers from output file
  --strip-xmp       strip XMP markers markers from output file

  --all-normal      force all output files to be non-progressive
  --all-progressive force all output files to be progressive
  --stdout          send output to standard output (instead of a file)
  --stdin           read input from standard input (instead of a file)
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