Wrong. you cannot.
PDFs are a real bitch of a format to extract text from. They don't store it as text but as images.
Hmm... you know what.
So, there are apparently "online converter" programs that convert pdf to word file for editing.
But those are online tools which are quite annoying to use. They tend to add watermarks, cost money, and do a poor job. I don't t trust them.
But that gave me the idea, could I force it to open in libreoffice writer? and apparently. you can in fact do that.
it converts it to ODF Drawing (ODF stands for open document format). And cannot resave it as pdf.
But it does let you make a spot edit...
Sorta, each page is its own seperate thing. so, if I delete a few lines it won't properly reflow the text from previous pages.
Doing further research online, I found this article on the subject
You must be registered to see the links
Apparently MS word does a little trick.
If someone uses MS word to export a word file into a pdf then it actually packs BOTH the original word file and the new pdf file together into a single pdf file.
It can be opened normally in pdf programs which only see the PDF file.
But if MS word opens it for editing, then it can find the hidden docx file and let you edit that.
a clever trick to get around the fact PDFs are impossible to edit
No idea if it would work here since I don't have MS Word to try and open these pdfs with.
In theory, if these walkthrough pdf files were made in MS word (which is not certain), then someone who has MS word could open them in word, and then perform a "save as" to save them as a .docx file (or odf).
then upload those. at which point they will become editable by anyone.