One master photo, many unforgiving slots
Instagram does not use a single box. Feed posts that fill a phone look taller as 4:5 (1080×1350) than as a square; 1:1 still works and is simpler for carousels. Stories and Reels want 1080×1920, but the username, stickers, and reply chrome sit on the top and bottom. Keep faces and captions in a roughly 1080×1420 center band or UI will cover them. Profile photos display small; upload a sharp square anyway because the circular mask still needs pixels. This page exists so you can frame an Instagram still once, then reuse the same discipline on other networks instead of posting and regretting. Facebook page covers are wide (think 820×312 on desktop) with a different mobile safe zone than LinkedIn’s 1584×396 banner. YouTube thumbs are 1280×720; leave room for title type that will not sit under the timestamp. Channel art is even wider (2560×1440) with a TV-safe center. TikTok is vertical like Stories. Pinterest pins prefer about 2:3 (1000×1500). X headers sit near 1500×500 and clip differently than Facebook. WhatsApp Status and Telegram stories behave like vertical safe-zone problems. Export variants from one master: square feed, 4:5 feed, 9:16 story, 16:9 thumb, wide cover. Do not send the same 3:2 camera file to every uploader. JPG, PNG, and WebP decode here; iPhone HEIC should become JPG first. After framing, compress if a 12 MP export exceeds an upload cap. Drafts stay on Canvas in this tab, not in a Convertify4u album.