There are many ways to cvert a batch of images to a different format the Mac. You can use Terminal, for example, or Automator, or you can of course open them in Preview and export them e at a time. But this program has a quick way to cvert a whole bunch of images at a time, so let's go about how to do that! It's simple.
To begin, you must first make sure that Preview preferences are set to open the files in the same window so that they can all be cverted at e time. To do this, launch the program from your Applicatis folder, then choose "Preferences" from the "Preview" menu at the top left.
When the Preferences window opens, click the "Images" tab and make sure that the radio butt next to "When opening files" is set to e of the first two optis (ie window ").
If you chose "Open groups of files in the same window", double-clicking the images will open them together ly s & rsquo; they are all selected at ce If you select "Open all files in e window", you can double-click the desired image files, and they will all appear in the same working file in Overview: Clear as mud? Here's what I mean by that. So with "Open groups of files in the same window ", I have to be sure to select all the image files that I would like to cvert at ce, like this:
To do this, I pressed Command and clicked these items my desktop. If I then double-click e of these files, Preview will open with them all displayed together in the same window, like this:
If however, I have "Open all files in a window" instead, then I could double-click the first JPEG to open it, and then the secd, and so . No matter how much I do at the same time, they will all appear in the same window in Preview. This is very cvenient for batch cversi as we do here, but it may not always be what you want! So be aware that you can go back to Preview preferences and change things whenever you want after cverting. (And be aware that if your JPEG or PNG files do not open at all when you double-click Preview, you can also adjust your settings.)
OK. Phew! Anyway, ce your files are opened in the same preview window, click any thumbnail in the sidebar and then press Command-A or choose Edit> Select All select all from them at e time:
With Selected , choose File> Export Selected Images .
Next you will see the Open / Save Familiar dialog; click "Optis" if you do not see the "Format" drop-down list.
Then you will choose your format to export your images to, select a backup locati, and click "Choose." Now all the files you have open in Preview export to their new formats!
I now have PNG files instead of JPEG. I swear I did it for a reas and not just for this advice. Yup.