Images in Link Shares - Sharing - Documentation - Facebook for Developers

Describes how to specify image(s) in link shares, how to ensure they are displayed properly, how to update them and some caveats. (should be 40-180 characters, 150 recommended)

The size of the image file must not exceed 8 MB. ... When content is shared for the first time, the Facebook crawler will scrape and cache the metadata from the ...

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