How to Edit Photo Size on Mac: A Step-by-Step Guide

When it comes to editing photos, one of the most common tasks is resizing them. Whether you want to post an image online or print it out, adjusting the size can make a big difference. In this article, we will explore how to edit photo size on your Mac using the Photos app.

Understanding Resolution and DPI

-----------------------------

Before we dive into the steps, let's clarify some key terms. Resolution refers to the amount of information contained in an image, measured in pixels per inch (PPI). Dpi, on the other hand, is a measure of how much detail can be seen at a given distance. When you change the resolution of an image, you are resampling it or modifying the amount of information.

Resizing Images in Photos

------------------------

To resize an image in Photos, follow these steps:

1. Open the Photos app on your Mac and select the image you want to edit.

2. Click 'File' > 'Export' from the menu bar.

3. Choose where you want to save the image and select the file type, compression quality, and other settings as desired.

4. Under 'Size,' choose a preset such as Full Size, Large, Medium, or Small, or click 'Custom' to specify your own size in pixels.

5. Click 'Export' to apply the changes.

Alternatively, you can also use the 'Dimension' option to limit both width and height to a specific number of pixels.

Tips for Resizing Images

----------------------

When resizing images, keep the following tips in mind:

* A higher dpi is required for higher-density displays.

* Smaller devices typically have higher ppi because they are held closer to the screen.

* The density of an image also depends on how closely your eye is to the screen.

-------

In this article, we have explored how to edit photo size on your Mac using the Photos app. Whether you want to post an image online or print it out, adjusting the size can make a big difference. By understanding resolution and dpi, as well as following the steps outlined above, you can easily resize your images to achieve the desired result.

How to edit a photo size on mac