How can I create a lower resolution photo from an original higher resolution photo?

I have an application that requires a lower resolution jpg photo; less than 1MB or 400x400 pixels. The original photo I have in my Apple MacOS Photo app is ~5MB. How can I create/save a lower res photo?

iMac, Mac OS X (10.5.6)

Posted on Mar 8, 2017 6:33 AM

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How can I create a lower resolution photo from an original higher resolution photo?

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