Guides on resizing and compressing images: exact KB sizes, passport photo requirements, and social media dimensions.https://resize4u.com/en-ushttps://resize4u.com/blog/social-media-image-sizes-2026/https://resize4u.com/blog/social-media-image-sizes-2026/Every social media image dimension you need in 2026 — Instagram posts and Reels, Facebook covers, X headers, LinkedIn banners, YouTube thumbnails — with tips to avoid blurry crops.Thu, 08 Oct 2026 00:00:00 GMTsocial mediacheat sheethttps://resize4u.com/blog/passport-photo-size-guide/https://resize4u.com/blog/passport-photo-size-guide/The exact passport and visa photo sizes for every major country in mm, inches and pixels — plus head position, background rules and how to resize your photo to comply for free.Mon, 05 Oct 2026 00:00:00 GMTpassport photohow-tohttps://resize4u.com/blog/compress-image-to-20kb-50kb-100kb/https://resize4u.com/blog/compress-image-to-20kb-50kb-100kb/Step-by-step guide to compress a JPEG or PNG to an exact KB size for government forms, job applications and exam uploads — right in your browser, no software needed.Fri, 02 Oct 2026 00:00:00 GMTcompressionhow-to