Having used "VueScan" for many years, it can be recommended without hesitation. Go to www.hamrick.com to get a copy. Once installed, and having done a "Preview" of your document, and have selected an area of focus, go to the "Edit" menu and choose "Copy OCR" (Cmd-T). If your document is in columns, or with bits of paragraphs here and there (as often seen in a newspaper) you will have to "frame"/select each one after the other. These can be pasted into the "Pages" app with ease for tailoring the layout. I guarantee that you will be pleased with this application.