DPI stands for dots per inch and is a measure of the resolution of a scanned document or photo. The higher the DPI, the higher the quality and resolution of your scan and the resulting image. The maximum DPI of a document scanner depends on the optical scan resolution capabilities of the image sensors. All Raven Scanners support scanning from 200 dpi to 600 dpi.
Scans at 200dpi to 300dpi will produce medium-resolution images, and are the industry standard for most documents as they produce acceptable quality and resulting file size. Most government standards recommend 300 dpi resolution for scanning. 400dpi will provide a medium-to-high resolution image, but larger file size.
Scans at 600dpi are considered high-resolution images and generally used for photos and material intended for printing. Raven Scanners support scanning up to 600 DPI, providing a sharp image that will result in high quality printing and will more closely resemble the original scanned source document.
Other factors will impact scan quality such as compression settings, brightness and contrast settings and output format.
