4 ms·
I'm guessing you can just append arbitrary data to a png file since it has eof markers in its file structure.
by jgalentine007 7y ago
I'm guessing you can just append arbitrary data to a png file since it has eof markers in its file structure.
- Liquid_Fire 7y agoPNG is structured in "chunks" of data of different types, and you can add your own tool-specific types. IIRC there is even a way to indicate what other tools should do with a chunk type they don't recognise (keep it untouched or throw it away).
- jgalentine007 7y agoI exported a draw.io png and they do encode the diagram information with private data chunks.