Systems, methods, and computer-readable media that include
computer-executable instructions stored thereon for displaying electronic
documents keep track of portions of an electronic document that have
appeared in a user interface window at some point in time (i.e., the
portions that have been actually viewed by the user). These portions of
the electronic document that have actually been viewed are designated the
"viewable document section" of the electronic document. In some examples,
scrolls bars and/or other electronic document view shifting elements
become available to the user only if the electronic document includes a
viewable document section that does not appear in the user interface
window, and these scroll bars and/or other view shifting elements may be
limited based on the content of the viewable document section (not the
entire electronic document). If the user changes the user interface
window to include portions of the electronic document that previously had
not been in view, the viewable document section then changes to include
this new, previously unseen portion. Accordingly, as the user inputs
electronic ink or other information into the document, scroll bars or the
like will not appear until the user takes steps to bring previously
unseen ink or other information into view in the user interface window.