![]() ![]() ![]() Also, as a precaution, ImageOptim puts original files in the Trash, so you can easly restore them if you ever need to.ĭepending on the number and sizes of the files it can take a few seconds or even minutes to process them. If you're not comfortable with that, you can create copies of the files before dropping them into ImageOptim. This is safe, because ImageOptim preserves image quality. ImageOptim overwrites the files with their optimized versions. There are no new files generated - the files you drop are optimized in-place. Then drag the ImageOptim.app icon to Applications, and open it from there.Īfter launching ImageOptim.app, drag'n'drop images into its window (if drag'n'drop is not convenient for you, you can press the button in the bottom-left corner instead).įiles are saved automatically.Open the downloaded archive (double-click the ImageOptim.tbz2 file after it finishes downloading) - it will reveal ImageOptim.app.Download ImageOptim archive - it should download within seconds.These instructions are only for the Mac version of ImageOptim. Old Mac? Download for Snow Leopard & Mountain Lion (10.6-10.9).Saves disk space & bandwidth by compressing images without losing quality. Please note that the optimizers included in the ImageOptim app bundle are not always the latest versions.Removes bloated metadata. ImageOptim is an all-in-one GUI wrapper for a plethora of lossless png optimizers/compressors, so you can try different ones instead of advpng. If you are using ImageOptim you can select this to pass the file to ImageOptim at the end. There are lots of png optimizers/compressors available but in my experience advpng gives good results in combination with pngquant while still being very fast. Similar to pngquant you can install it via Homebrew (thanks to for the find):Īlternatively you’ll find the source code for the latest version here (scroll down to “AdvanceCOMP” the instructions are in the “INSTALL” file and usually it compiles w/o any problems). To use advpng you need to have it installed on your Mac. Advpng is a pure deflate compressor and can further reduce file size by 5–20% (losslessly). This will automatically launch advpng on the file after pngquant has finished. The part before the “-” is for pngquant, the part after is for advpng (see below). Very useful if you want to find out the best settings for a given type of image. Writes a Finder comment to the file with information about the selected settings and the effectively achieved results. (The unique suffix is built of the number of seconds since the last restart of the Mac.) Write Comment This makes it easy to test various settings on the source image file consecutively without having to rename the output files manually. or8/.fs8 or overwriting, you have the option to append a unique suffix to each output file. In addition to pngquant’s standard suffixes. But I’ve added some comfort features: File Naming Most of the settings translate to pngquant’s command line options. Further information is available on pngquant’s homepage. To get some tooltip information you can hover with the mouse over the checkboxes and menus. You’ll be presented with this setup dialog: Select one or more png, tiff, gif or bmp images in the Finder.If you don’t like Homebrew you can also get the latest pngquant binary from here. Make sure that Homebrew’s bin path (usually /usr/local/bin) is available to Keyboard Maestro by setting the ENV_PATH variable accordingly in Keyboard Maestro’s preferences. A comfortable way to install the latest version is via Homebrew: brew install -HEAD pngquant If you have a website where you regularly upload screenshots or other non-jpeg images you are probably familiar with pngquant.įor the macro to work you need to have the pngquant command line tool installed on your Mac. Pngquant is a very efficient, lossy quantization and compression tool for png and other image formats. This macro is basically a GUI wrapper for the pngquant command line tool, with some additional features.
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