), different JPEG quality settings, reducing the pixel width and height of the JPEG, and only stretch it up when the PDF is displayed, cutting up the image content into smaller patches of images. I have tested with many file reduction schemes: different color compression methods (FlateDecode, LZWDecode, DCTDecode. My boss want to keep these PDFs in color, but wouldn't mind making them fuzzier as long as they are not too ugly. Being "blank", what I mean is center part of the page (two inches away from each margin) will be absolutely blank and white. Some are generated by software (and therefore have very clean pixels), others are scanned by desktop scanners. The images are mostly blank, but they have a variety of company letterheads (in color), borders and footers. Recently I am tasked with reducing the file sizes of PDF generated from blank office documents.
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