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Scanned documents can result in a large graphics file that is too large to email. Scan settings allow you to change the DPI to something more useful.
I scanned a copy of my W2 form and tried to email it to someone but I was told the file was too big - over 25 MB. How does a simple text document acquire such a huge volume?
In this excerpt from Answercast #81, I look at the reason scanned documents can often result in a very large file.
Well, when you scan it, it's not a text document. What a scan creates is a picture of the document.
It's like taking your camera and taking a picture of that piece of paper. A camera's image can be quite large depending on any of a number of different settings. A scan is no different. It's literally, probably, a .jpeg or a .png file (which is a graphics file format), not a text file format.
Converting an image of a scanned document into text requires OCR and a number of other things to make sure that the formatting all comes out proper.
Now, we can adjust the 25 MB. That does seem a tad large for a simple one-page document.
What I would have you do is look at the resolution being used by your scanner. Usually, a simple document like a text document can be scanned at something as low as 75 dpi. It will look just fine. That is 75 dots per inch.
Many scanners might be set at, or default to, a higher resolution. If you've been scanning pictures recently, it may be set to even much higher DPI: 312, 1200 maybe even more. The net result is that each inch of scan then results in more dots. More dots take up more space, more space means a larger file.
For a simple text document, you don't need that much. That's the setting I
would look at the next time you scan something like this. Take a look at the
DPI and see if something as low as 75 dpi doesn't get you a perfectly
acceptable scan of the document you want. Perhaps even lower.
(Transcript lightly edited for readability.)
Next from Answercast 81 - How do I get this video camera to work with Windows?
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