How to have a small scanned pdf file directly from the scanner?

We have an all-in-one Konica Minolta bizhub C452. When we use it to scan documents to a file we found the size is always pretty big as compared to via Brothers. It ends up we have to open it up in Acrobat and shrink it in there. It becomes quite cumbersome. Can you tell me if there is a way to get a small size of scanned pdf file directly from the scanner?
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Brad GrouxSenior Manager (Wintel Engineering)Commented:
The scan size is probably dependent on the detail that the scanner is using. Decreasing the level of scan detail will reduce the scan size dramatically.

See section 5.10 of the attached owners manual PDF for how to set it - specifically the "resolution" area and "file type" areas. You can utilize the "Compact PDF" format to get more size down.

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Joe Winograd, Fellow&MVEDeveloperCommented:
The file size of a scanned document is heavily dependent on the resolution (DPI) and mode (monochrome, grayscale, color). Monochrome (aka black&white/B&W) is 1-bit; grayscale is typically 8-bit; color is typically 24-bit. The bizhub C452 calls those Black, Gray Scale, and Full Color. For standard business documents that I want to OCR, I'll use 300 DPI/B&W. This results in reasonable file sizes and accurate OCR. Sometimes (rarely) I'll use 200DPI/grayscale and, only when necessary, color (either 150 or 200 DPI). If you change the settings to 300DPI/B&W, you'll get reasonable file sizes. Btw, if you're happy with the file sizes coming from your Brother devices, look at the settings there and put the same ones in your bizhub. Regards, Joe
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