HOW TO AVOID LOSING IMAGE QUALITY ON INSTAGRAM WHEN USING ADOBE PHOTOSHOP
Sep 30, 2021
Instagram can often reduce the quality of your images during uploads for a wide number of reasons, but if you’re looking to maintain quality then you should look to upload a high-quality, compressed JPEG file
(max resolution: 1080 x 1350px) directly from your mobile or tablet to avoid any further compression by Instagram.