Since Adobe does not sell PageMaker anymore, the software exists in a legal gray area. You cannot buy a legitimate new license from Adobe. However, of PageMaker 7.0 or earlier, you are legally entitled to install it on your Windows 10 PC using workarounds.
If you have the installer file:
If you're able to download Adobe PageMaker, you'll need to install it on your Windows 10 machine. Here are the steps: download adobe pagemaker for windows 10
I know you want to open that old .pmd file. But instead of breaking your Windows 10 registry, try this: Since Adobe does not sell PageMaker anymore, the