Sometimes it's useful to download a portion of a plan page to PDF. To download a PDF showing only the area of the plan that is visible on your screen, just click Print on the right hand toolbar, then click the Print Current View button.
This will create a PDF of only the portion of the plan that is visible on your screen. This PDF will include all markups, takeoffs and any overlays that are applied. Note this is the only way to export overlays.
Since this method is just "snapshotting" the view as it appears on your screen, the downloaded PDF will not be to scale and should be used for reference only.
See here (https://www.stackct.com/help/en/articles/769495-how-to-print-to-pdf) for instructions on how to download a PDF from STACK that has the same scale as the original plan.