Resizing images
This guide shows the steps to be taken to resize images in Windows 10 and Mac systems.
Windows 10
Select the file in Windows File Explorer
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Right click on the image file and choose open with, then select Photos (it might not be your default app to open images)
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This will load the photos app and your image. Now click on the three dots as shown
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This will open a menu (left) and you select resize. You can then see options to save the files and estimates of file sizes. Select one and then save.
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Apple Mac OS
Use the Finder app to select your image file.
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The Preview app will load and display your image
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Use the Tools menu, then Adjust Size. You can then change the width and height measurement to percent, and adjust them to see the new file size.
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