Larger Pictures in Facebook Page Link Posts
Mindjumpers
SEPTEMBER 19, 2013
However, Facebook has recently changed the design of page links posts – the size of the images has increased 4x on mobile and 8x on desktop. In order to generate the new, larger previews Facebook have made some guidelines: The images for desktop should optimally be 1200 x 630px. Use images with an aspect ratio of 1.91:1.
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