Abstract: Object size measurement has become very vital in today’s world, it has widened its applications in various fields; Measurement is not only crucial in science and the chemical industry but ...

You can use a Mac's default image-viewing program, Preview, to resize any image or multiple images at once. Here's how to resize images on a Mac.

Photoshop offers a wealth of tools for cropping images. You can crop to an aspect ratio, use content-aware fill and many other techniques.