Long-time iOS blogger Sebastien Page, founder of iDownloadBlog, shares a great tip about resizing images on the Mac. All of us have to do it at some point, and Sebastien reminds us that it’s relatively simple to resize images in Preview, Apple’s native image viewing and manipulation application. Here is his succinct tutorial:
“There are many different ways you can quickly resize several images at once on your Mac. You can use an Automator workflow or download one of the many apps available to do that job. Or, if you want to quickly resize images on the fly without too much trouble, you can simply do the following…
Step 1: Select all the images you want to resize.
Step 2: Right click on them and select “Open With Preview.”
Step 3: In Preview, go to Edit > Select All.
Step 4: Once all images are selected, go to Tools > Adjust Size.
Step 5: Enter the width or height value to resize your photos to your liking. If you’re only going to resize the width for example, make sure “Scale Proportionally” is selected. This will ensure that your images are proportionally resized.
Step 6: Save and close.”
From the article: How to quickly resize multiple images at once on a Mac, by Sebastien Page, Oct 19, 2013.