Moving this discussion to the Adobe PageMaker forum.
Chazmuse you should be able to download the trial of Adobe Pagemaker from http://www.adobe.com/cfusion/tdrc/index.cfm?product=pagemaker&loc=en%5Fus.
I would also recommend that you review the system requirements available on the same page. If your computer is more modern that the system requirements listed then it is likely you will be unable to install and utilize Pagemaker once it is downloaded.
And you may find it enlightening to read one of the many threads such as this:
Also, don't forget that Adobe officially stopped supporting PM many years ago.
Pagemaker is obsolete. Don't waste your time on it. It doesn't work well on modern computers. Most users have switched to Indesign, othe cheaper alternatives are things like Serif Page Plus or Scribus.