It may not perfectly suit PDF documents with many charts or graphs, but if they have simple text, you can use Word Online to edit them.

How to Edit a Scanned Document in Word. If you have a printed copy of a Word document, but don't have the original document, you can scan the copy and edit it in Word. If the copy is properly ...

Scaling a document in Microsoft Word is often necessary when you need to adjust the content to fit a different paper size, whether for printing or other purposes.