←back to thread

A new PNG spec

(www.programmax.net)
612 points bluedel | 1 comments | 24 Jun 25 13:01 UTC | HN request time: 0.254s | source
Show context
joshmarinacci ◴[25 Jun 25 15:55 UTC] No.44378719[source]▶
A fun trick I do with my web based drawing tools is to save a JSON representation of your document as a comment field inside of a PNG. This way the doc you save is immediately usable as an image but can also be loaded back into the editor. Also means your downloads folder isn’t littered with unintelligible JSON files.
replies(12): >>44379250 #>>44379645 #>>44379652 #>>44379867 #>>44379992 #>>44380435 #>>44380543 #>>44380616 #>>44380678 #>>44380701 #>>44380930 #>>44384671 #
1. geekifier ◴[25 Jun 25 17:12 UTC] No.44379652[source]▶
This is also how Valetudo delivers robot map data to Home Assistant https://hass.valetudo.cloud.