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Make background of pdf lighter so printer doesn't print

478 85 February 27, 2013 at 06:50 PM
So I have a pdf file of scanned pages and the scanned pages have a dark tint to them because they were scanned from colored paper in black and white.

Is there anyway to lighten up the background so that it wastes less ink or to make it so the printer doesn't pick up on the background and just print the darker words?

Thanks!

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#2
you could try changing to jpg then use a color tool to change the background to white, or rescan
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#3
I agree on the rescan. Many scanners have the ability to drop out colored papers. I am guessing you actually scanned it in grayscale thats why your seeing gray in the background. If it was scanned in true B&W mode you would probably get a white background since it only displays black or white.

If you knew your way around a photo editing program like photoshop you could probably fade the gray backgound but it would take time and you would loose quality. Rescan with different settings is your best bet.
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#4
Are the pages just text or are their graphics as well? I'm thinking convert them to .doc file.
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#5
Quote from LiquidRetro
:
I agree on the rescan. Many scanners have the ability to drop out colored papers. I am guessing you actually scanned it in grayscale thats why your seeing gray in the background. If it was scanned in true B&W mode you would probably get a white background since it only displays black or white.

If you knew your way around a photo editing program like photoshop you could probably fade the gray backgound but it would take time and you would loose quality. Rescan with different settings is your best bet.
http://www.cambridgeincolour.com/...levels.htm
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#6
Levels alone won't work, especially if its in grayscale as I am guessing since everything will be in the gray (Black) channel.
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#7
Your best bet is to use optical character recognition software to copy and paste the text into a new file of any format you want.
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#8
Quote from LiquidRetro
:
Levels alone won't work, especially if its in grayscale as I am guessing since everything will be in the gray (Black) channel.
http://tabletopstudio.com/white_b...tml#folded
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