DPI and what it means for your scans
DPI (dots per inch) is an important value when you’re talking about document scanning. It affects the quality of the image on different displays, OCR accuracy (which determines text search), the file size, and also determines possibility of resizing. DPI is especially important with respect to images if they are to be printed.
More Isn’t Always Better
Although documents can be scanned anywhere from 75 to 300 DPI, bigger isn’t always better. Different DPI values have different uses, and while a high DPI may be necessary for some projects, a lower DPI may be ideal for others. For example, the file size of an image scanned at 300 DPI is much larger than one at 100, so if you aren’t going to view your document on a high res display as with simple text documents, 300 is overkill and a waste of disk space. For descriptions of DPI values and their suggested uses, you can consult the free resource DocumentScanningService.com
Understand DPI with This DPI Guide
Also provided on DocumentScanningService.com, this free DPI guide will walk you through the difference in DPI values complete with image comparisons, and help you decide on the value that’s right for you. You can also visit the DocumentScanningService learning center for more general information about DPI and many other aspects of document scanning services and document imaging.
