Can't scan in Acrobat 10.1.1 / Lion 10.7.1

I cannot scan using Acrobat X (10.1.1) and an Epson Perfection 4990 scanner because it does not show up in the "select a device" dropdown box.  I can scan using the  application Epson supplies, but the resulting scan is 10-20 as large as I want, and I then have to deal with it in Acrobat anyway.  Neither Adobe nor Epson has been of any assistance. Adobe says the driver is bundled in Lion so it can't be uninstalled and reinstalled, which would not do much good anyway if the Acrobat application does not recognize the scanner.  Apple applications Preview and Image Capture recognize it, but that doesn't do me any more good than using the Epson application.

Are you sure of the math?  a 200dpi colour scan taking 500K represents an original document of two inches square.  You do know that each dot of those "dpi" needs three bytes of stoarage if you are scanning in RGB, and four if CMYK? Eight bits are used to hold the amount of each primary colour in each dot.
500K roughly 500000 bytes. Number of dots 500000/3 = 166666
Assuming a square picture:  side length is sq root of 166666 =408 dots
408 dots at 200dpi is two inches
Regarding size: the larger the resolution, the smaller the resulting size. A ten inch high document scanned at 100dpi is a thousand dots high. Displayed on a 72dpi monitor, the picture is 1000/72 = 13.88 inches high. Printed at 300 dpi, it will end up 1000/300 = 3.33 inches high.
It is the resolution of the output device that determines the physical size of the document. It is the resolution of the scan that determines the quality of the picture.  Your 12 Mp digital camera doesn't need you to print out your photos twelve times bigger than your old 1Mp camera.

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          From: sukritd15 <[email protected]>
    To: Deborah Karr <[email protected]>
    Sent: Friday, February 13, 2015 5:35 AM
    Subject:  While editing a scanned pdf, Acrobat will not recognize the current font & change to very different font. How can I choose the font I want to match the current document?
    While editing a scanned pdf, Acrobat will not recognize the current font & change to very different font. How can I choose the font I want to match the current document?
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