Plustek's SEETM Technology (Shadow Elimination Element) combines a lamp light with a special edge design that allows the scanning module to scan right up to where the book spine is placed. This design avoids the need for a large, expensive overhead scanner or complicated image-editing software. With Plustek's SEETM Technology and the OpticBook's clearly-scanned pages, those who use OCR (optical character recognition) software to scan text for editing will see perfect results, even near the binding. There is no paper required; users can scan their files onto hard drive, or any portable storage media, saving time and reducing paper waste. The scanner also optimizes space because of the smaller footprint as compared to a photocopier. To improve distribution of scanned documents, OpticBook includes a feature that saves images in the popular and cross-platform Searchable PDF format, as well. In addition to its power as book scanner, the OpticBook 4600 also functions as a scanner with a scanning speed of 3.2 seconds at a resolution of 300dpi/ color and features one-button functionality that can assign up to five scanning functions.