> Archives will probably be compress later on anyway What do you mean by this? Z... | Hacker News

Hacker Newsnew | past | comments | ask | show | jobs | submit

		KMag on June 5, 2021 \| parent \| context \| favorite \| on: John Carmack on JPEG > Archives will probably be compress later on anyway What do you mean by this? Zip, 7zip, gzip, zstd, etc. get little to no compression on PNG. JPEG, or JPEG2000. Presumably you mean something other than zipping up directories of images.

josefx on June 5, 2021 [–]

Zip compressing a single PNG is kinda redundant, since it already uses the same algorithms as part of its own lossless compression.

KMag on June 5, 2021 | [–]

Yes. I'm aware that zip, gzip, and PNG all use zlib DEFLATE compression.

Consider applying for YC's Winter 2026 batch! Applications are open till Nov 10
Guidelines | FAQ | Lists | API | Security | Legal | Apply to YC | Contact