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PDF with multiple images-original scan from off-white paper

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PDF with multiple images-original scan from off-white paper FrGuidoSarducci 06 Sep 20:23
  PDF with multiple images-original scan from off-white paper Pat David 12 Sep 15:28
FrGuidoSarducci
2015-09-06 20:23:45 UTC (over 9 years ago)
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PDF with multiple images-original scan from off-white paper

I have a 250+ page PDF document. Every page of this document contains an image. The original image that was scanned was on off-white paper. I want to print the PDF on white paper, but the off-white background of the original paper stands out. I am unable to get the original images. I was able to get rid of the off-white color thru GIMP (2.8.14) using Select->By Color and then Bucket Fill. I am new enough at GIMP that I don't know if it's possible to make this change on all of the images at once. Is this possible? if so, can someone point me in the right direction? Thanks.

Pat David
2015-09-12 15:28:58 UTC (over 9 years ago)

PDF with multiple images-original scan from off-white paper

It's possible using something like BIMP (Batch Image processing in GIMP), or to code a script. Otherwise, it may be something best handled by imagemagick? (I normally turn to imagemagick/g'mic for batch processing vs. GIMP personally). Could you link/attach the doc or a page of the pdf that shows the problem?

On Sat, Sep 12, 2015 at 10:16 AM FrGuidoSarducci wrote:

I have a 250+ page PDF document. Every page of this document contains an image. The original image that was scanned was on off-white paper. I want to
print the PDF on white paper, but the off-white background of the original paper
stands out. I am unable to get the original images. I was able to get rid of the off-white color thru GIMP (2.8.14) using Select->By Color and then Bucket Fill. I am new enough at GIMP that I don't
know if it's possible to make this change on all of the images at once. Is this
possible? if so, can someone point me in the right direction? Thanks.

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