Instructions apply to macOS Big Sur through OS X Lion (10.7).

Then:

Open Image Capture on the Mac.

Find the app in the Applications folder tolaunchit or typeImage Captureinto theSpotlight searchfield.

Image Capture default window with a selected scanner highlighted

Select your scanner from the pane at the left of the main window.

If you don’t see your scanner, clickSharedto reveal shared devices and then make your selection.

In thePicturesdrop-down menu,select a destination for the scan.

Image Capture Pictures drop-down menu highlighted

Change the bounding box around the document by dragging.

When you’ve made your choices in theShow Detailpanel, clickScanto start the scan.

It is saved to the location you chose.

Image Capture size settings highlighted

If you selectPDF, you see a check box labeledCombine into single document.

This setting combines all your scans into one multipage PDF.

If you forget to click this box,PDFs can also be combined in Previewafter the scans are complete.

Image Capture on Mac options with Show Details highlighted

Image Capture Scan button highlighted