It seems like every week, a social network is changing layouts and requiring new dimensions for their profile photos, the background canvas, and images shared on the networks. Limitations for social images are a combination of dimension, image size – and even the amount of text displayed within the image.
I would caution against uploading oversized images to social media sites. Each social media platform uses aggressive image compression that often leaves your images blurry. If you can upload a great image and compress it with a service before uploading it, you’ll get much crisper results!
