If you need to resize a lot of images at once, Window 10 Image Resizer utility is just the thing. This powerful tool is included in Windows PowerToys, a free collection of utilities from Microsoft. To use the resizer, you must first download and install PowerToys. (Click here to learn how to do that.)
To use it, select the image or images you want to resize in File Explorer.
Right-click and choose Resize pictures from the menu that pops up.
This window will open. You can choose to resize images as small, medium, large, and phone.
Or choose to custom create the size you need. Decide if you want the image to fit, fill, or stretch.
Choose to resize by centimeters, inches, pixels, or percentage.
Additionally, decide if you want to make pictures smaller but not larger. You can also decide if you want to resize the originals or create copies and if you want to take the orientation of pictures into consideration. When you’re satisfied, click on Resize.
Give it a try and let me know what you think.