Crop or rotate a PDF in Preview on Mac
You can crop a page to hide content, or rotate it to change its orientation.
Crop a PDF
To crop a PDF, you first select the area you want to keep, and then discard the rest. If you want to view the dimensions of the content you’re selecting, choose Tools > Show Inspector, then click the Crop Inspector button and choose a unit of measurement that’s displayed in the Crop Inspector window.
In the Preview app on your Mac, if the Markup toolbar isn’t showing, click the Show Markup Toolbar button , then click the Rectangular Selection button .
Select the portion of the page you want to keep.
Click the Crop button in the Markup toolbar (or use the Touch Bar).
Note: To undo the crop immediately, choose Edit > Undo Crop. To undo the crop later, return to a version before the crop. Choose File > Revert To > Browse All Versions, then browse the versions to restore the one you want.
Rotate a PDF
In the Preview app on your Mac, open the PDF you want to change.
Do one of the following:
Rotate one page: Click the Rotate button (or use the Touch Bar).
Rotate several pages at once: Choose View > Thumbnails or View > Contact Sheet, select the pages to rotate, then click the Rotate button .