A scanner captures documents and other content optically and transfers the information to your computer as an image file. Then you can save the photograph, text or information to a location of your choice and share it with others through such venues as print media, a website or email. Scanning a document saves time, but, since the content is an image, it can be difficult to edit without an image editor. Major editing may require starting from scratch. You can convert a scanned image to a PDF file in a few steps. Writer Bio
