[jira] Updated: (PDFBOX-948) Don't use temporty files by default for all PDF sizes

["Martin Koegler (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/PDFBOX-948?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Martin Koegler updated PDFBOX-948:
----------------------------------

    Attachment: default-inmemory-workfile.patch

> Don't use temporty files by default for all PDF sizes
> -----------------------------------------------------
>
>                 Key: PDFBOX-948
>                 URL: https://issues.apache.org/jira/browse/PDFBOX-948
>             Project: PDFBox
>          Issue Type: Wish
>    Affects Versions: 1.5.0
>            Reporter: Martin Koegler
>         Attachments: default-inmemory-workfile.patch
>
>
> PDFBOX uses by default temporary files as work space (regardless of the PDF size).
> org.apache.pdfbox.io.RandomAcessFile is not buffered, so each read/write acess is a system call.  There are functions like readlong, which call read 4 times to read 4 bytes. Additionally, it adds the usual problems with tempory files.
> For normal sized PDFs files, the in-memory implementation RandomAccessBuffer should not increase the memory usage too much, while providing faster IO as all access operations are only memory copies.
>  
> Therefore, please consider switching the default to in-memory scratch buffers. Users with very large files can still pass a temporary directory.

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