To start, select the image you want to resize by clicking Open With > Preview.You can easily resize photos on Macs by using the built-in program, Preview.

When you see that it's less than 3 MB, you're done! NOTE: Depending on how large your original image size file is, you may need to keep resizing until you've reached under 3 MB. Once you click OK, you must save it to view the new image file size.If your image is close to 3 MB, you do not need to resize it by that much. The number, 60 would be the safest amount for files greater than 3 MB and under 10 MB. You can choose an amount to resize the image by.For now, we'll resize it by percentage since it's easier. You can choose to resize your image by percentage or by pixels if you know the exact dimensions that you want it to be. When you click Resize, another box will pop-up.It's the one with two rectangles to the right of the Select box. Once you have your image, you can click Resize in the Image box.You can see here that my file size is currently 5.0 MB. You can check the current file size on the bottom. First, open the image you want to resize in Paint.If you are using a PC, you can resize your images through the already built-in program, Paint. There is a way to change your image file to smaller than 3 MB. SiteFarm has recently changed the image file limit to 3 MB, which sadly is smaller than most image sizes. Well, you've come to the right place for this question! 'How do I adjust my image file to be smaller than the limit?' So, you've received that 'WARNING! Image size is larger than 3 MB!' message.

How to edit a picture in preview