What DPI Is Required To Scan A Color Document

Images and color documents are generally scanned later. If this is your case, you must scan the color photographs at 600 DPI, while scanning at 1,200 DPI guarantees perfection and archival quality. You don't need to scan above 1200 DPI, it really isn't necessary. 

If it's color images for the web, it requires a receipt scanner with at least 300 DPI. Once scanned, you must save them in.PNG format. Meanwhile, the color documents for this same purpose, you must scan them at 300 DPI and save them in PDF format.

How To Scan Halftone Images

Halftone images are made up of tiny dots that make up an image. These are the result of the reprographic technique that was used before the invention of modern printing. These types of images must be scanned at a DPI of 1200 or higher for the scanner to properly capture halftones. As it is made up of dots, it is important that the system handles mid-tones correctly. Regarding storage, these must be saved in a.PNG file.

What Is The Most Recommended Type Of Document Scanner?

The flatbed scanner is probably the most recommended on the market. As the name implies, they are flat and have a hinged lid that closes to ensure proper document scanning. They are larger than most self-powered scanners and come with BETTER SPECIFICATIONS such as resolution and additional features, including connectivity options the Epson Perfection V850, and Epson WorkForce DS-50000, are the flatbed models featured on this list as the best document scanners of the year. 

Versatility: The flatbed scanner is a versatile device, well suited for different types of scanning jobs. Models that integrate a backlight and an adapter can process paper documents, but also slides, negatives, and films of various formats. 

Simplicity: the flatbed scanner is the most popular model on the market, due to its generally affordable price, but also due to its ease of use. The manipulations are not complicated, it generally only requires placing the document to be scanned on the transparent glass and letting the scanner do the rest.

Speed: This type of scanner offers quite high performance. Depending on the models and the chosen resolution, you can benefit from a very fast scanning speed of up to 25 pages/min. Scan quality:  to ensure good scan quality, especially for film and slides, flatbed scanners are generally equipped with a fairly high optical resolution that can exceed 6,400 x 9,600 dpi on certain models. This allows you to print the images obtained without losing the quality of the colors. 

Price: Flatbed scanners are among the most affordable on the market. Prices vary depending on the models and built-in functions, ranging from less than € 100 for low-end models, to more than € 1,000 for high-end models, for professional use.