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for f in *.jpg; do jpegtran -rotate 90 "$f" > "$f.temp"; touch -r "$f" "$f.temp"; mv "$f.temp" "$f"; done jpegtran is part of libjpeg. touch -r also changes the creation time if the target time is be …

Another option using ImageMagick: mogrify -trim *.png You can install it with brew install imagemagick after installing Homebrew.

One option would be to Cut and paste using ⌘-ALT-X and ⌘V after resizing the canvas size in destination file. The pasted image doesn't seem to get snapped to canvas edges now. Increasing canvas size …

I like to use ImageMagick. sips and Automator (which use an identical resizing method) make images look too blurry without additional sharpening in my opinion. You can install ImageMagick with brew in …

You could create a service like this with Automator: It can't be used to for example edit an image embedded in a Pages document though.

Use Hex Color Picker:          

You might install ImageMagick with brew install imagemagick and then use something like this: convert -delay 4 *.png output.gif -delay 4 sets the delay between frames to 0.04 s. See http://www.ima …

ImageOptim? ImageOptim optimizes images — so they take up less disk space and load faster — by finding best compression parameters and by removing unnecessary comments and color profiles. It handles …

Here's another shell script. You can save it as a normal text file and then run bash /path/to/script.sh from Terminal. Remove the echo to actually rename the files. cd ~/Pictures/ IFS=$'\n' # the inp …