ShareThePoint

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If I post a link to my Wordpress blog post on Facebook it will pick up a photo tagged with the og:image tag. I would like to know what happens if I change the tag to a different photo (using Yoast). Will this also change photos on my existing Facebook posts or they will still show the photo that was current at the time of posting?
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If I post a link to my Wordpress blog post on Facebook it will pick up a photo tagged with the og:image tag. I would like to know what happens if I change the tag to a different photo (using Yoast). Will this also change photos on my existing Facebook posts or they will still show the photo that was current at the time of posting?

Changing og:image tag for a Wordpress post already posted on Facebook

Photo and imaging software is used to edit and compose raster images; Adobe Photoshop, which dominates the market, has its own topic. Common actions include cropping, slicing, retouching, color replacement, masking and erasing. Other programs include Apple Photo, Corel PaintShop Pro, GIMP, Serif PhotoPlus, Pixlr, PhotoScape, Picasa and IrfanView.

Images and Photos

Facebook is an online social networking service. After registering to use the site, users can create a user profile, add other users as "friends", exchange messages, post status updates and photos and receive notifications when others update their profiles. Additionally, users may join common-interest user groups, organized by workplace, school or college, or other characteristics, and categorize their friends into lists such as "People From Work" or "Close Friends". Notable features include a News Feed, Friends, a Wall, a Timeline, the Like button, Messages and an inbox, Notifications and Networks and groups.

Facebook

WordPress is a free and open-source content management system (CMS) based on PHP and MySQL for creating websites and blogs. Features include a plugin architecture, a template system and strong management, customization and search systems; through its dynamic presentation of content, webmasters have the flexibility to create websites easily.