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https://issues.apache.org/jira/browse/PDFBOX-2871?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14624740#comment-14624740
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Roberto Nibali commented on PDFBOX-2871:
----------------------------------------
I'm running SVN head since a couple of days already, as most of the recent
changes had been triggered by my moaning to the pdfbox users mailing list. On
my MacOSX test laptop, I have 388 fonts in the referenced directories and the
search + font parsing takes between 8 and 10 seconds. I'm willing to have a
look at it, since I've seen quite a few places with potential speed
improvements. I have no idea, why it is so slow on my MacOSX. Today, I had the
chance to quickly run the code on a Windows 7 client system, and it also only
took roughly 4-5 seconds to scan the system; after that the cache hits
massively reduce the time, so it's not an issue for production. However during
development it's killing me ;).
> Performance issue when filling the first PDTextField of an AcroForm
> -------------------------------------------------------------------
>
> Key: PDFBOX-2871
> URL: https://issues.apache.org/jira/browse/PDFBOX-2871
> Project: PDFBox
> Issue Type: Bug
> Components: AcroForm
> Affects Versions: 2.0.0
> Reporter: Maruan Sahyoun
> Assignee: John Hewson
> Priority: Critical
> Labels: Appearance
> Fix For: 2.0.0
>
> Attachments: PDTextField.pdf, ProfilingOutput.png
>
>
> When filling the first PDTextField in a form the performance is slow. All
> other PDTextFields in the form are handled quickly.
> This code
> {code}
> PDTextField field = (PDTextField)
> doc.getDocumentCatalog().getAcroForm().getField("Textfield01");
> long start = System.nanoTime();
> field.setValue("ABCD");
> long end = System.nanoTime();
> double difference = (end - start)/1e6;
> System.out.println(difference);
> field = (PDTextField)
> doc.getDocumentCatalog().getAcroForm().getField("Textfield02");
> start = System.nanoTime();
> field.setValue("ABCD");
> end = System.nanoTime();
> difference = (end - start)/1e6;
> System.out.println(difference);
> {code}
> produces the following output
> {noformat}
> 9713.38
> 3.904
> {noformat}
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