I want optimize images like Facebook and WhatsApp in my website.all user are uploading in hign memory size ..so it take more time to load my that page..
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If you show these images in a gallery-style like Facebook, crop them on back-end and show that specific cropped image during gallery-style preview and load the hi-res image only when a user clicks on any of those images. – Basit Nov 05 '14 at 10:02
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That depends on your back-end stack, you've only tagged your front-end technologies. If it's PHP you have Imagick for example. – Hein Andre Grønnestad Nov 05 '14 at 10:04