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A comment on Students are failing AP tests because the College Board can’t handle HEIC images. Parent comment

Re:Students are failing AP tests because the College Board c... by gsnedders on Thursday May 21, 2020 @01:09PM (#23261225)
> If you have a webpage that accepts image uploads, is iOS Safari not smart enough to do the same conversion?

AIUI, Mobile Safari always re-encodes the image. However, if you transfer the image to a device that supports HEIC (e.g., recent macOS) then you'll find out that (desktop) Safari never re-encodes an image when uploading a file.

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Re:Students are failing AP tests because the College Board c... by oefrha on Thursday May 21, 2020 @01:34PM (#23261699)
> (desktop) Safari never re-encodes an image when uploading a file.

Not really: https://news.ycombinator.com/item?id=23261216

Images are converted if you select from Photos (instead of the filesystem).

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