How to crop photo into circle?

Apple's Pages application can allow you to place a oval (really a circle) mask over a photo and snap that out as a circular image. This is in the Forman menu : Image : Mask with Shape : Oval menu structure after you drop an image in Pages. Once you have the image in a circle and selected, click the Image tab on the right, and grab the image icon below File Info, and drag to your Desktop.

More reasons not to like Catalina. :)

I didn't know about masking in Pages since I don't use it. However, I couldn't just drag the cropped image outside the Pages document. I could copy it and use "New from clipboard" in Preview then save the image.

P.S. Sometimes it's an oval. 😎

If you start with a duplicate of a high resolution jpeg and attempt to apply the Markup Elliptical selection tool in Preview, when you click the crop button, it will warn you that the selection introduces transparency and do you want to overwrite the jpeg as a png? The resultant png is 300 dpi in my testing, just not jpeg as you preferred.

Here is a a crop result from an original JPEG image from a Leica Q2. I have chosen a black Preview window background. Note: this is a 72 dpi screen capture of the 5.6MB 300 DPI circular image (that the hosting software cannot post) cropped from Preview:

i2 wrote:

I would like to crop some photos into a circle shape without purchasing additional software. I have seen several discussions that say you can use Preview or the Photos app but none seem to work. I am using Mojave.

http://crop-circle.imageonline.co/

You could also use GIMP which is free. FWIW, you can't end up with a round jpg, it would have to be a .png. Even then it's not really round, just the surrounding area would be transparent.

[redacted, working on a solution ... /viking]

I assume you meant to reply to the OP. 😎

Well yes… once the hosting software gets out of my face.