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Thread: zip / rzip not compressing

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  1. #1
    Join Date
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    Default zip / rzip not compressing

    Hello,

    I am using zip or rzip to compress a 500k file, and zip only compresses it by 9% and rzip by nothing... I reinstalled both of them, and also installed libzip-devel and libzip-util (just in case) and nothing... what am I missing here? I'm running 11.0 64 bit, gnome.

    Thanks,
    why do people open source?

  2. #2

    Default Re: zip / rzip not compressing

    And of what type is the file you want to compress?

  3. #3
    Join Date
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    Default Re: zip / rzip not compressing

    The sepcific 500k file is a pdf file, but I've tried compressing different types of files, for example mp3, doc or even whole directories, always with the same result. I am using the simplest

    zip foo.zip foo.pdf
    why do people open source?

  4. #4

    Default Re: zip / rzip not compressing

    -----BEGIN PGP SIGNED MESSAGE-----
    Hash: SHA1

    Files that are already compressed don't typically compress more very well.
    Text files, for example, compress very nicely. mp3 files, by definition,
    do not.

    Good luck.





    monoRhesus wrote:
    > The sepcific 500k file is a pdf file, but I've tried compressing
    > different types of files, for example mp3, doc or even whole
    > directories, always with the same result. I am using the simplest
    >
    > zip foo.zip foo.pdf
    >
    >

    -----BEGIN PGP SIGNATURE-----
    Version: GnuPG v2.0.9 (GNU/Linux)
    Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org

    iQIbBAEBAgAGBQJJ7Lf5AAoJEF+XTK08PnB5uFsP9iuXjq82gtWEUxkLylElVARd
    jrqpKBNQmotmUqVFqb86/WzBwXYrr48Ge2rvEuC7AvB4NR0JD9G6681C1wcFvBl0
    fe08tGn6M/ym+ptcfKDq4r6T+teu1xvPrll8+JfZF0IqS0b/qfWZnOwTi+TXyev5
    Bn5WQ+gv4dBq9Db/5ATQvgtDEnWL6c+DT1X9AJ67mCzeuxk20HZ4rhWTFhqKmUpE
    H5o5AIBfxZU3gMZGJkY4Hq0X306bxT1JfIkTFp1aH+4cTe6toVXe3LN7/p7yxYvA
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    s7cakzHgT+uWroXjqhqnEPNI6e0oyJeS7sh8hNLICtopNIlvB6u+NvtO1u3wcEW+
    Hc6Yvgsofn8tTrLVkH5yCyzI56ZomXkVqzo/i0LrfqxQqMKAliObWF0CgHF84y58
    iArH1Dyk5yQ6sbf5DZJ6RSkE4zzct9DaiZzo7ESBM4t8jdr6f3jtnq8lAiHdKKxS
    DsBmt33Ywvzq4Gj/ndNmFScdYEzFOcuHSx4Nb9gKJ9xAWQxVNF2eDizn2TIFjXPe
    D+W/5CQlFqMrOcRz6Zw=
    =mGSi
    -----END PGP SIGNATURE-----

  5. #5
    Join Date
    Oct 2008
    Location
    mexico cityx
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    Default Re: zip / rzip not compressing

    Thanks. I checked out with other pdf files and the deflation is around 50%. I am using many images in the file whose deflation rate is 9%, and I'm guessing that might be it... The .pdf files that compress nicely have no images. Does this sound like a reasonable explanation?
    why do people open source?

  6. #6

    Default Re: zip / rzip not compressing

    Yes, it does.

  7. #7
    Join Date
    Oct 2008
    Location
    mexico cityx
    Posts
    81

    Default Re: zip / rzip not compressing

    Thanks Akoellh.
    why do people open source?

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