whenc

I could have sworn your comment originally said "track and trace" not "test and trace". Perhaps not enough coffee.

Out of an abundance of caution, I've deleted it. So there we are.

...

It went un-noticed here, I think, but The Pragmatic Bookshelf recently fired most of its staff and are taking on no new books. In the email they sent to authors, they quoted a 40% YoY fall in non-fiction sales, industry-wide.

You can do:

  cpdf -output-json in.pdf -o out.json

(Modify out.json as liked)

  cpdf -j out.json -o out.pdf

(Disclaimer, I wrote it.)

PDF annotations sit within the file.

The last big RISC OS program written in BASIC and assembler. I published something through Cerilica called TextFX, also in BASIC and assembler.

There was also Composition, by a chap from New Zealand. Multiple transparent layers of any size and position, and and interesting system-wide plugin system.

Try with cpdf (disclaimer, wrote it):

  cpdf -output-json -output-json-parse-content-streams in.pdf -o out.json

Then you can play around with the JSON, and turn it back to PDF with

  cpdf -j out.json -o out.pdf

No live back-and-forth though.

"....financial precarity (his income through the 1970s averaged £7,600 a year)"

£100000 in today's money in 1970. £35000 in today's money in 1979. Minimum wage today about £23000.

"Management is that for which there is no algorithm. If there's an algorithm, it's administration." (Maurice Wilkes, IIRC)