It seems like it will take a very long time to go through the entire document and edit and reformat the large amounts of text. Does anyone know of a good workaround for this kind of situation, where lines of text are separated into several boxes and options such as going to Properties to changes the font aren’t useable to change the font of paragraphs etc?
The only other option I know of is to use the Edit Page/Edit Objects Touch-ups that send me to Illustrator where I have to remove several or potentially dozens of Clip Groups, then use a combine text frames script to get a normal line of editable text. Both ways are huge time wasters so I’m sure theres better ways to work with a lot of text in PDF files but I’m not familiar with what they are.
Recently discontinued, but still available Serif PagePlus X9 has quite good selection of PDF importing options. Special care has been taken to retain the positions and the editability of the texts. Try it, its trial costs no money.
Addendum: User Scribblemacher has some heavy notes in his answer. He is right. If you really have to edit a PDF (=import+edit+save as PDF), you should never let anybody to have a possiblity to think that this is the original PDF. Rename it and add some data or metadata that shows it’s derivativeness.
To keep quality high, use the most original available format as the base for your enhacements and let the creator of the original to know that you want to do some edits.