One of the little known tools available in macOS that can save you lots of time is Automator. This app allows you to create workflows, which you. In this article, we’ll show you how to use the Automator app to create a simple service that will have you resizing images in just a couple of. As I was using Photoshop to resize my eleven billionth image, it occurred but default Automator jpg compression in combination with resizing.

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Apple’s Automator: compression settings for jpg? – Stack Overflow

If, for example, you want to scale images to px, enter that in the text field. When you select an action in the Library columns, a section at the bottom left explains what these actions do. How can I prevent this?

If there are tens fompress hundreds of images, wouldn’t it be great to automate the process? Then paste this code: Or are there any other tools that do the same job but without affecting the image quality?

How to Batch Convert and Resize Images With Automator

This actually brought me on a new path which I will definitely discover more in future! By using our site, you acknowledge that you have read and understand our Cookie PolicyPrivacy Policyand our Terms of Service. The direct version of Acorn does not have these issues. Maybe you have a folder full of JPEG images that you want to re-compress so that they aren’t taking up so much room on your disk, or maybe you’re delivering them over the web and you don’t want to use up lmages of your bandwidth.


You can also drag and drop automafor all into the table.

Whenever you create an application, it can work by default with drag and drop. Here’s how you would do that in Automator: This right-hand section is where you will build your workflow. Note For App Store Users: For the Change Type of Images action, it tells you what type of images the action can receive.

Aufomator your images are not in JPEG format, you may need to export them from an image editing app, or you may need to convert them. I never worked with AppleScript.

Acorn: Automator Batch Compress JPEG Files

For instance, to scale the image to half its size and save as a JPEG in best quality, overwriting the original: I am also wondering why this is happening anyways cause nothing in my automation asks for a compression.

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Want to get the most out of your new MacBook, iMac or other Apple computer? Comment from ’17 To avoid “space” problem, it’s smarter to change IFS than renaming. Save the workflow; press Command-S and choose a name for it.

By clicking “Post Your Answer”, you acknowledge that you have read our updated terms of serviceprivacy policy and cookie policyand that your continued use of the website is subject to these policies. First get the files and the compression setting: If you click on Results at the bottom, it’ll tell you what file it’s currently working on. You can also download the workflow from here: Acorn is an image editor that I have on my Mac.


Some apps provide Automator actions that leverage the features of their apps. The most useful of these are, for most people, services and applications.

Automztor restore original IFS after the processing loop. Next, we want to find an action that will convert image files. Go to the Finder and select an image file.

This Automator workflow will allow you to do that. The first item in the array is the compression level that was given to the Automator Script.

Quickly compress images with Automator (Mac)

If you want to have finer control over the amount of JPEG compression, as kopischke said you’ll have to use the sips utility, which can be used in a shell script. And your images will be written into the same folder as the originals, with “-exported. Can get most of the jobs done. Automator actions are designed for simplicity, not configurability, which means you mostly are at the mercy of the decisions of the action developer as to their implementation.

Create a new document in Automator, but choose Service. The Mac Security Blog.

You can then run these routines in compreess Automator app, as services via a contextual menu, or in applets that you can save and run by double-clicking or by dragging and dropping files on them.

Thank you for your detailed answer! Stack Overflow works best with JavaScript enabled. Any chance you still have the workflow script itself to share?