[jira] [Commented] (PDFBOX-4471) Different fields look alike if they have the same /AP/N before value change

["Tilman Hausherr (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/PDFBOX-4471?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16882287#comment-16882287 ] 

Tilman Hausherr commented on PDFBOX-4471:
-----------------------------------------

Re the comments in February, please see this SO issue re keeping an AP

https://stackoverflow.com/questions/56938135/

> Different fields look alike if they have the same /AP/N before value change
> ---------------------------------------------------------------------------
>
>                 Key: PDFBOX-4471
>                 URL: https://issues.apache.org/jira/browse/PDFBOX-4471
>             Project: PDFBox
>          Issue Type: Bug
>          Components: AcroForm
>    Affects Versions: 2.0.13
>            Reporter: Tilman Hausherr
>            Priority: Major
>         Attachments: csOnePage.pdf
>
>
> See attached SO answer - in the attached file, different fields point to the same /AP/N object. I think this could be fixed by changing {{AppearanceGeneratorHelper.setAppearanceValue()}} by removing the "if" segment in {{if (appearance != null && appearance.isStream())}} and keep the "else" part only.
> I'm wondering why we are reusing the existing appearance stream, is there are use case to this? I ran the tests after making the change and there was a difference but it was invisible.



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