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https://issues.apache.org/jira/browse/PDFBOX-5633?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17740738#comment-17740738
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Tilman Hausherr commented on PDFBOX-5633:
-----------------------------------------

dpi = 0 is usually the best, but might be very slow when pages have 
transparencies. Using dpi is the workaround but this could mean that 
uncompressed pages get into the spooler, depending on the quality of the 
printer driver.
Considering that you were using an outdated PDFBox version, could it be you're 
also using an outdated printer driver and jdk version?
If you're on windows, you can also choose the direct print option, but I assume 
this makes sense only if you're the only user of that printer.

> Increase in spool size when pdfbox processes a pdf document and prints on 
> konica minolta printers
> -------------------------------------------------------------------------------------------------
>
>                 Key: PDFBOX-5633
>                 URL: https://issues.apache.org/jira/browse/PDFBOX-5633
>             Project: PDFBox
>          Issue Type: Bug
>    Affects Versions: 2.0.23
>            Reporter: arunoday mukherjee
>            Priority: Major
>         Attachments: test_print_doc.pdf
>
>
> We use PDFBox from our java application to send documents to print to a 
> physical printer. 
> But we see a significant increase in size of the pdf document when printed on 
> a konica minolta printer around 40x time in spool size. Thus, resulting in 
> higher time taken to print.
>  
> we have set the DPI to 0 which results in some imporvement but still we see a 
> 40x time increase in size
>  
>  



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