Seems like sixel would be an excellent solution, thanks very much for that pointer.
However, I can always convert PDFs to images and go forward from there, I guess. It's not a bad workaround. The fbi image viewer is available for NetBSD's X Window system; not sure about the framebuffer port. https://www.kraxel.org/blog/linux/fbida/
"Like ls, but for images. Shows thumbnails in terminal using sixel graphics. /.../ Because lsix uses ImageMagick pretty much any image format will be supported.
However, some may be slow to render (like PDF), so lsix doesn't show them
unless you ask specifically."
All in all, woah, lots of fascinating reading and links here -- since I was not much aware of sixel before: https://github.com/saitoha/libsixel
The sixel format itself seems to match really well with the NetBSD philosophy (among other things, keeping old hardware running via low-demanding, essentials-only software). Thanks again for that pointer.
However, I can always convert PDFs to images and go forward from there, I guess. It's not a bad workaround. The fbi image viewer is available for NetBSD's X Window system; not sure about the framebuffer port. https://www.kraxel.org/blog/linux/fbida/
EDIT: Apparently, NetBSD has lsix: https://ftp.netbsd.org/pub/pkgsrc/current/pkgsrc/graphics/ls...
"Like ls, but for images. Shows thumbnails in terminal using sixel graphics. /.../ Because lsix uses ImageMagick pretty much any image format will be supported. However, some may be slow to render (like PDF), so lsix doesn't show them unless you ask specifically."
On Linux, the green pdf reader for Linux apparently supports sixel: https://github.com/schandinat/green
Screenshot of green+sixel on NixOS: https://teddit.net/r/commandline/comments/4oldf5/view_pdfs_i...
Another Linux pdf reader with sixel: https://github.com/dsanson/termpdf
All in all, woah, lots of fascinating reading and links here -- since I was not much aware of sixel before: https://github.com/saitoha/libsixel
The sixel format itself seems to match really well with the NetBSD philosophy (among other things, keeping old hardware running via low-demanding, essentials-only software). Thanks again for that pointer.