The most common way to adjust the scanning resolution for better quality scans is to increase the DPI (dots per inch) setting. The higher the DPI, the more detail and clarity the scan will have. Depending on the size of your document, you can select a DPI setting ranging from between 300 and 2000 dpi. Be sure to check with your scanner’s manual before selecting a DPI setting, as different scanners may have different optimal settings. Additionally, many scanners also come with an auto-adjust feature, which can be used to automatically adjust the scan resolution to the best possible setting.