How can I read PDFs in scrolling mode on an iPad 2?
This may be a solution - please give feedback so I can correct.
Login with the same appleid on a more modern apple device (iphone etc) or possibly on a desktop computer.
Purchase (for zero dollars) the apps &quot;USB disk&quot; with the purple logo and  &quot;Adobe Acrobat&quot;.
On the ipad 2, open App Store and either look at &quot;Purchased Apps&quot; or browse to find the identical apps you already &quot;bought&quot;, and download them.
The option to download an older version should appear.
The abovementioned apps have a version that works under 9.3.5 on ipad 2, open .pdf and use vertical scrolling. I just checked!
I also recommend you get the Chrome browser at the same time as some websites will work with it when Safari will not, and its availability may be terminated...