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)
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.