I am trying to get used to the Photos App on MacOS, but there’s one thing I can’t find, either in the Help or in all of my web searches.
How can I resize an image? By that I mean scale it down. I can find how to crop the image, but that’s not what I want.
For example, I have a large image, say 1280px x 960px. I would like to scale it to a smaller size, say 640px x 480px. This is the sort of thing you need to do to adjust an image for use on a web page.
I know how to resize using Preview app, and I have other applications which will do the job, but I would like to do it within the Photos App itself.
I will happily install an extension if required.
Best Answer
This may not be the main reason for your question, but if you wanted to resize an image for use elsewhere (e.g. for use on a web page), you can choose to resize it upon export.
More specifically:
Now your photo(s) have been exported with the size you chose to the location you chose and these are available to other applications (and within the Finder).
Using 3rd party apps as helpers within Photos
Depending on the version of macOS (and Photos) you have installed, you can also use 3rd party apps as helper apps to edit photos. You can launch these from within Photos, make your edits, and then upon saving the changes appear automatically within the Photos app. This includes scaling changes.
To do this:
Now your edited photos appear with all changes intact within the Photos app.
NOTE: The app you select at Step 3 must already be installed on your Mac for it to be available.