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https://issues.apache.org/jira/browse/PDFBOX-4895?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17165328#comment-17165328
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Andreas Lehmkühler commented on PDFBOX-4895:
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[~tilman]  fixed, thanks for the hint

> Faster COSNumber
> ----------------
>
>                 Key: PDFBOX-4895
>                 URL: https://issues.apache.org/jira/browse/PDFBOX-4895
>             Project: PDFBox
>          Issue Type: Improvement
>    Affects Versions: 2.0.20, 3.0.0 PDFBox
>            Reporter: Alfred
>            Assignee: Tilman Hausherr
>            Priority: Trivial
>              Labels: Optimization
>             Fix For: 2.0.21, 3.0.0 PDFBox
>
>         Attachments: PDFBOX-3703-966635-p12.pdf-1.png, PDFBOX-4895-b.patch, 
> PDFBOX-4895.patch, Untitled.png
>
>
> A small improvement can be made to COSNumber when checking if it's float.
> Current version uses indexOf twice, to check for '.' or 'e'.
>  We can do that in one scan.
>  
> Each call will scan through the entire string.
>  We only have to scan until we find the chars, and stop if found.
>  
> I found while profiling the code that the method gets called a lot, so the 
> improvement makes a a bit of a difference.



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