The reason I'm telling you this is because no matter what challenge or frustration you're having, I know exactly what you're going through. Your free ebook is up for grabs. Just click the button below and start downloading Toggle navigation. Here's what you need to know Here's how mine looks like Well, let's have a look at DPI Now let's double the DPI to Here's what happens Ultimately, though, the best resolution to scan at depends on the type of document your business is capturing and how you'll be using it.
Resolution works hand in hand with an image's size. If you take a small image and scan it at a high resolution, you can spread those pixels out and reprint it at a large size — this is how film scanners work. Conversely, if you have a large image and only need to use it for a small size, you can scan it at a lower resolution and shrink it. While these are general rules of thumb, it's also good to remember that once you throw away information, you can't get it back.
If you're in doubt about which resolution to use, scan with too many pixels rather than too few. While having bigger files is inconvenient, it's less inconvenient than not having the resolution that you need to complete your project.
The National Archives and Records Administration, which is the arm of the federal government that, among other things, holds on to the original copies of the Constitution and Declaration of Independence, believes the best dpi to scan documents is at dpi resolutions, even though they feel that a dpi resolution is adequate to reproduce them. For more than 40 years, we have helped companies large and small with their document storage and retrieval solutions.
We can help you to go paperless, too! Contact us today! Topic: how to scan a document. You May Also Enjoy Reading:. Follow Me. Embrace Paperless! Call today for your free quote and document management plan or Contact us online. And this large difference clearly shows that drastically enlarging a color print is not the best method, for the reason I am trying to explain.
Anyone that has ever done any darkroom work knows it's not so easy to create a really sharp 8x10 inch photographic print from 35 mm film. To scan a photo and enlarge it to print at 8x10 on an inkjet is certainly not going to do any better. Did you ever try to copy a wallet size photo by photographing the small photo print, and then enlarging that film copy to 8x10?
If so, you know its detail will be poor as compared to printing from the original negative at 8x10 and the point is that scanning to enlarge this small print won't be different. Prints just don't contain the detail to enlarge well. Professional prepress insists on film, not prints. When scanning 35 mm color prints, you will often look very hard for detectable improvement when scanning over dpi, and often that number is dpi. This concept of color prints offends many that don't want to hear this, those of the "more is never enough" school, but this is very easy to test.
Notice again that I am trying to be careful to always say " color prints ". But enlarged 35 mm color photo prints effectively stop yielding additional detail when scanned at more than about dpi.
This is a problem when trying to scale them larger, to still have sufficient detail to print well. The only reason I dwell on this so much is because everyone wants to scan a 4x5 inch color print, and print it to be 8x10 inch photo quality, and there is this complication involved. You can do it, and it is good up to a point, but your greatly enlarged image won't have all of the detail you might desire or imagine, and I am trying to explain why.
Certainly film can be scanned at dpi with good effect, because film and film grain were designed to be greatly enlarged. In fact, the only purpose of film is to be enlarged perhaps a few exceptions, x-rays maybe, but certainly true in general. But photo prints and print grain were not designed to be enlarged.
Prints are designed to be viewed by human eye without optical magnification. Perhaps they could have designed print paper to have finer grain and use milder developers, to support greater detail, but they did not, our human eye is not that good. I'm sure there seemed to be no reason to consider it, since the film negative original is already designed for this purpose.
Some of us discard the negatives, and that's a major mistake. The film is the original master version of the image, and the print is a relatively poor copy.
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