Can this show me who last edited the file?

It shows the Author field the document was saved with, if the software that created it set one.

Metadata Viewer

Metadata Viewer shows a Word document's title, author, subject, and keywords.

Click to upload a fileor drag and drop

Set a Word document's document properties.

Count words, characters, and paragraphs in a Word document.

Combine multiple PDF files into one document.

Split a PDF into individual single-page files.