The main one
How to edit the text in a PDF, free, on Windows
Not annotate over it. Not rebuild it in Word. Change the words that are already on the page and keep the document looking like itself.
Guides
Answers to the awkward PDF questions.
Short, practical write-ups of the things people get stuck on. Each one answers the question first and explains the reasoning afterwards, and each one names the right tool for the job even on the occasions when that isn’t this one.
Diagnosis
Why can’t I edit this PDF?
Six reasons a PDF refuses to be edited, how to tell which one you’ve got in about ten seconds, and what to do about each.
Get this wrong and it matters
How to redact a PDF so the words are actually gone
A black rectangle is not redaction. The text underneath is still in the file and anyone can copy it out. Here’s what removal really means.
Forms
How to fill in a PDF form that won’t let you type
Three different things are all called “a PDF form”, and they fail in three different ways. Work out which you’re holding, then fill it in.
Passwords
How to remove a password from a PDF you own
There are two kinds of PDF password and they behave nothing alike. Which one you have decides whether this takes five seconds or is impossible.
Choosing
Free alternatives to Adobe Acrobat, honestly compared
Sorted by what you’re actually trying to do, because “best free PDF editor” depends entirely on which of about eight different jobs you mean.
Or just try it.
Free, no account, and it uninstalls cleanly if you don’t get on with it.