You can run PageMaker 7.0 on a 64-bit OS, but you cannot install a native 64-bit version. Any website promising a "PageMaker 7.0 64-bit.exe" is either misinformed or distributing malware.
Softonic, CNET Download.com, and any site using "FREE DOWNLOAD BUTTON" pop-ups. These sites bundle adware like Opera browser or McAfee bloatware. adobe pagemaker 7.0 download 64 bit
Even by today’s standards, the feature set of PageMaker 7.0 was robust for its time: You can run PageMaker 7