Three Hidden Traps That Break JPG Uploads on Mobile and How to Fix Them

Mobile photo uploads commonly fail due to three technical issues: EXIF orientation metadata causing sideways images, oversized camera files ranging from 5 to 12MB, and iOS HEIC photos masquerading as JPGs. Phone cameras store rotation instructions in EXIF metadata rather than adjusting pixel data, which many browsers and image libraries fail to interpret correctly. Modern smartphones shoot at up to 48 megapixels, producing files far larger than most apps require, slowing uploads on weak connections. iOS devices save images in HEIC format by default, meaning a file named photo.jpg may not actually contain JPG data. Drawing the image onto an HTML canvas before upload corrects orientation and reduces file size, while server-side normalisation handles uploads from third-party apps and older client versions.
This is an AI-generated summary. ShortSingh links to the original source for the complete article.

Discussion (0)
Log in to join the discussion and vote.
Log in