How do I set default view preferences in Adobe Acrobat?

In Acrobat Pro, I try to set preferences (open in "page-width" view and use "one-page continuous) but it only makes changes for the document I have open, not as default for every time I open.

I'm not 100% sure, but I think that to change the default for the "Single Page Continuous" (or one-page continuous)

1. In the Preferences dialog box under Categories, select Page Display.
2. Open the Page Layout menu and choose Single Page Continuous

What are you trying to do, create PDFs? Edit PDFs...?

Note: The PDF opens with the page layout specified in Preferences unless a different page layout is specified in Document Properties (File > Properties > Initial View). The Document Properties setting overrides the Preferences setting. If using Document Properties, be sure to save and close the document for the change to take effect. Acrobat users can change the initial view, unless security settings prevent changes. Reader users cannot change the initial view.

BTW, welcome to SuperUser When you get a chance, read the FAQs

The "Default Page Layout" option never worked for me, but I've found another option in the Preferences that seems to work:

Open Preferences. In the Accessibility category, under "Override Page Display" check the Always use Page Layout Style and select the preferred option. This works as a default setting for opened pdf documents.

This answer is for Adobe Acrobat Pro DC only.

Head to File > Document Properties (Ctrl-D)

Click on the Initial view tab, there, the first few fields are for setting the default view for that document. These preferences may be ignored depending on the application used to view the document, but should work in Adobe products (Acrobat and Reader).

Once set, accept the changes and save the document.