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On Wed, 22 Feb 2017 14:38:33 -0700, thelma@×××××××××××.com wrote: |
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> I have scaned pdf file (88-page) 23MB in size (downloaded this way). |
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> Trying to reduce the size of the file I use some on-line web-page and it |
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> did a good job. PFD file went from 23MB to 13MB looking at both files |
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> there is not difference in quality. |
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> |
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> I was trying to duplicate the result via linux command linux command |
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> line using "convert" "gs" etc, I can not even come close. |
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I haven't used it for a while, but qpdf has tools for examining, |
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extracting and compressing data in PDFs. Comparing elements of the two |
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PDFs should gives you a good idea of what was done. That level of |
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compression was most likely achieved by using more lossy compression on |
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images. |
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-- |
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Neil Bothwick |
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User-friendly: (adj.) trivialized, slow, incapable, and boring. |
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