Image web parts in SharePoint Online are used to easily add images to your web page. However, rarely is your image the perfect size when you first upload it, and you’d be surprised how big a photo can be in full resolution. 🙂 There is now an option in the Image Web Part that allows you to resize your image. Here’s how it works…
Here’s a picture of my partner and I dressed up for a Halloween dance party. While it’s a fun photo, it’s just a “smidge” too large for the page. When the page is in edit mode and I’m in the Image Web Part, I have a tool bar that allows me to resize the image. When I click it, it will add “handles” to the corners of the image so that you can resize it (and maintain the aspect ratio):

Here’s what those handles look like, and I was able to use the one in the lower right corner to reduce the size to something more in line with the page:

Bonus tip… You can also click the alignment icon to move align the picture to the left, center, or right of the Image Web Part:

Once I republish the page, I have a resized image that is appropriate for what the page should look like:
