The article was originally written for Financial Times, whose audience will have a general knowledge of computing. Also, what the heck is MRC?
Basically, you scan a paper document. It contains a mixture of line art, text, and photographs—“mixed” types of content. You can segment it and use different codecs to encode these different segments, and then combine the results in a PDF.
> Essentially, 1990's algorithms used in photocopying and scanning compression are still lurking in modern communication software, with all of the flaws and baggage that come with them.
https://arstechnica.com/information-technology/2021/12/googl...
Given than JBIG2 wasn't standardized until 2000, and that the Apple vulnerability was in their implementation (vs the standard) I just don't understand this characterization.