Social media is a must for marketing your photography these days, but how do you ensure your photos look their best? In order to get the most out of your marketing, it’s important to understand how different social media platforms compress and convert your images. Bookmark this handy guide, which gives you the optimal image sizes for each platform. Facebook tends to compress images quite a bit, which may result in reduced image quality. Uploading PNG files to Facebook is a good workaround, since they can’t be compressed. If you’d rather post JPG images, convert them to sRGB and keep the size under 100KB to avoid compression. Here are the recommended image sizes.
  • The profile image is 180 x 180 pixels.
  • The ideal cover photo size to avoid compression is 851 x 315 pixels.
  • For images in links, 1200 x 627 pixels is the best size.
  • For timeline photos as well as albums, 2,048 pixels wide is the max size before images gets compressed. If you have large pictures (2,048 pixels wide), then select “high quality” when uploading.
You can also use your voicemail message to drive traffic to your Facebook page. Compression is less of an issue with Twitter, but it does have uploading limitations. Here are some guidelines to follow.
  • The header image aspect ratio is 1:3, so 1,500 x 500 pixels.
  • The profile image is 400 x 400 pixels. You’ll want it to fill the frame so it still looks good when scaled down.
  • For photo sharing there is a 1:2 ratio, with 1024 x 512 pixels being ideal.
Compression doesn’t seem to be an issue with With Google+ and there are only a few dimensions to remember.
  • The profile photo is 250 x 250 pixels.
  • The cover photo is 2,120 x 1,192 pixels.
  • For sharing images, the minimum size is 250 x 250 pixels.
This handy guide gives you the optimal image sizes for each social media platform. Source: Optimize Your Photos for Social Media Marketing