I'm computer challanged (othe sh♡♡as well) but could not get that site to work for me. I just used,... "picresize" and it may have worked, I'll see after posting once here. This is what worked.
Your Image Width Height Filesize
Original 1008 x 756 101 KB
New 756 x 567 66 KB
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Free Online Picture Resizer - Crop and Resize photos, images, or pictures online for FREE!