Thanks for the encouragement! I’ve learned how to add a PDF document outline and created an updated file with an index on the sidebar <https://gist.github.com/hackerb9/4b993d3e204a0eb0e46859a276b22fee/raw/TRS-80_Model_100_Portable_Computer-jbig2.pdf> .
It took a while to type in the outline and page numbers by hand, particularly since I added an entry for every BASIC command. I figured if I do it right, no one will have to go through this tedium again. The outline is structured as a text file (outline.txt <https://gist.github.com/hackerb9/4b993d3e204a0eb0e46859a276b22fee/raw/w-outline.txt>) which can be added to the PDF by using cpdf -add-bookmarks outline.txt in.pdf -o out.pdf. (I don’t know why cpdf <https://www.coherentpdf.com/> calls the outline “bookmarks”.) I still haven’t gotten hyperlinks for the actual text figured out, but I noticed cpdf can create a clickable Table of Contents from the outline and add it to the beginning of the document. I think it looks a bit ugly and may not be so useful since the outline shows on the sidebar anyhow, but see this version with a generated TOC <https://gist.github.com/hackerb9/4b993d3e204a0eb0e46859a276b22fee/raw/TRS-80_Model_100_Portable_Computer-jbig2+toc.pdf> for yourself and let me know if it's useful or not. —b9 On Thu, Jul 16, 2026 at 9:41 AM Joshua O'Keefe <[email protected]> wrote: > On Jul 16, 2026, at 8:56 AM, B 9 <[email protected]> wrote: > > I’ve created a much smaller version of the PDF > <https://gist.github.com/hackerb9/4b993d3e204a0eb0e46859a276b22fee/raw/59f26ba22962e78005fee4ee18fec42bdab570e0/TRS-80_Model_100_Portable_Computer-jbig2.pdf> > (40 MB instead of 2 GB) by using JBIG2 symbol compression. > > > Within the limits of what jbig2 can do, this is a delightful tradeoff of > readability for size. Great work! As a daily driver version of the manual > it seems far more than adequate given that it's about the size of a baby's > pinky nail. > > I'd love to see all the variants people are working on consolidated into a > single collection once the dust settles. No doubt those who come after us > would benefit from scrounging all over the internet hunting down which copy > is which, or losing track of the reference scan. We already run into this > problem today with slightly divergent copies of the same document becoming > "welp, that's all we've got." > > Thanks for offering this up! >
