There are two simple ways to remove the password from a PDF file, one of which works no matter what software you have.
To password protect a PDF in Adobe Acrobat Reader, you'll need the paid Pro version, which starts at $14.99 a month.
Portable Document Format files, or PDFs, are easily presented and exchanged across softwares—even Word—so here’s how to convert a PDF into a Microsoft Word document. Converting a PDF into a Microsoft ...