Scan receipts and how to learn the basics
As useful and convenient as these devices are, they simply can't compare with larger models in terms of the clarity of the image. Nevertheless, they are sufficient for most casual uses, and their small size and portability makes up for any deficiency in image resolution. If image quality is of more importance to you, you will want to look into a portable scanner that has a high dots per inch or dpi image resolution. Make sure to offers at least 48 bit depth image quality if you're particularly concerned about getting the best images possible. For tasks that involve simply scanning pages of text however, you should be able to make do with a model that offers only eight bits.