Thread: Determining number of pages in file

  1. #1
    Registered User starkhorn's Avatar
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    Determining number of pages in file

    Folks,

    I'm reading in input from an external file and I want to know in advance the number of pages that the external file contains....as I want to break-up the input page by page.

    Is there a method to determine the number of pages in say a .txt file or a .pdf file ?

    Cheers
    Starkhorn

  2. #2
    and the hat of int overfl Salem's Avatar
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    Not without reading the whole file.

    A PDF file might contain the information, but that is a proprietary file format.
    If you dance barefoot on the broken glass of undefined behaviour, you've got to expect the occasional cut.
    If at first you don't succeed, try writing your phone number on the exam paper.

  3. #3
    Registered User axon's Avatar
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    I don't think that is a good approach...how would you measure the size of a page on a txt file?

    But whatever you do, just like Salem said you must read in the whole file first; than maybe count pages as 80 chars per row multiplied by whatever number of rows.

    some entropy with that sink? entropysink.com

    there are two cardinal sins from which all others spring: Impatience and Laziness. - franz kafka

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