How do we change the default page display zoom in Onbase 24.1.11 for older PDF version?

OnBase version 24.1.11 uses Adobe Acrobat Reader to display PDF documents. We noticed older PDF versions displayed in OnBase zooms to 170% and staff has to zoom out every time. We’ve tried changing the scaling option under General in adobe acrobat reader and setting the zoom option to fit to page or 100% under the Page Display but it doesn’t seem to work for these older PDF documents in OnBase. Is there any other way to default 100% or fit to page for all PDF documents in OnBase.