[MarjaE]

If I check the individual files in the Mac Finder, command-i can list compatibility level, resolution, security, and encoding software. Maybe Linux or Windows equivalents add color rendering or other info.

Any of these can help show which devices can read which pdfs, which is important.

I pre-process my pdfs for my Kindle, while keeping the originals *and* the pre-processed versions. Sorting by resolution and/or color rendering can help sort out which copies I've processed using which tools and settings.

If other users don't pre-process theirs, they may still find it handy.

Is there a way to set up a column for any of these things?