By setting the resize to only affect the longest edge, it will receive the photos to a uniform size regardless of the aspect ratio you have cropped to. I also recommend using a Lightroom plugin like JPEGmini, which optimises and compresses the file size automatically for you on Export. Images should all be exported at 72dpi in the sRGB colour space suitable for web images. The easiest method for cropping and exporting images is via Lightroom’s Export window, using the settings shown below. If you’re looking for a cheat sheet of social media image sizes, here are the three most common aspect ratios and recommended image sizes to work across the main social media channels. It could also relate to a 900 x 600 pixel image too. A 300pixel wide image, therefore, would only be 200 pixels tall. The means that for every 3 pixels there are in an image’s width, there are only 2 pixels in an image’s height. Lets take a look at a 3:2 image ratio for example. We’ll be talking a lot about aspect ratios, which are numerical values that define the shape of the image you need to crop into. When it comes to getting your work out there, you’ll find that each social media channel has its own requirements for image formatting, so photographer Tigz Rice has gone through every social media channel and listed the best aspect ratios for each, including developing a handy cheat sheet of three image sizes that will work across all of your social media channels.
Add that to further research showing an increase of 176 million social media users in 2015 and you’ve got an incredibly powerful tool to help promote your latest work. Alongside the power of print, according to research, the use of images within your social media posts can result in up to an 87% interaction rate on Facebook as well as increasing retweets by 35%. Powerful and compelling use of images on your social media pages and posts is often the best way to find success on the likes of Facebook, Twitter, Pinterest and more. Photographer Tigz Rice shows you how best to crop images for maximum impact on Facebook, Twitter, Pinterest and Google+ – with tips for composition, size and positioning.
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