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https://issues.apache.org/jira/browse/PDFBOX-2333?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14179411#comment-14179411
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Maruan Sahyoun commented on PDFBOX-2333:
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I’ve enhanced the alignment of single line text fields as
- left aligned text had too much padding applied on the left
- centered text had padding aligned to the left making it no longer aligned
- right aligned text had no padding applied making it overlap with borders
In addition I added some special handling for corner cases to match Acrobats
behavior. This needs to be verified with additional files.
> Overhaul the apperance generation for PDF forms
> -----------------------------------------------
>
> Key: PDFBOX-2333
> URL: https://issues.apache.org/jira/browse/PDFBOX-2333
> Project: PDFBox
> Issue Type: Improvement
> Components: AcroForm
> Affects Versions: 2.0.0
> Reporter: Maruan Sahyoun
> Priority: Critical
> Fix For: 2.0.0
>
> Attachments: AcroForms-SimpleTextFields.1.8.7.pdf,
> AcroForms-SimpleTextFields.1.8.7.png, AcroForms-SimpleTextFields.pdf,
> AlignmentTests-post1633495.pdf, AlignmentTests-pre1633495.pdf
>
>
> The appearance handling for forms in 1.x is limited and does not reflect all
> settings possible for form fields. In addition the current code is not very
> modular and does not follow the box model used for form fields.
> Unfortunately only the basics of form handling are defined in the PDF spec.
> The details like padding of boxes, text placement etc. have to be determined
> by looking at how Adobe forms are generated.
> Update: The file from PDFBOX-2310 has bad rendering which might be related?
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