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https://issues.apache.org/jira/browse/PDFBOX-4212?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16507441#comment-16507441
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Maruan Sahyoun commented on PDFBOX-4212:
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I'm glad that there were no changes necessary.

The reason for copying it is that I didn't want to change the current 
implementation for AcroForms while reworking the formatter. I'm currently 
experimenting with various API changes - especially using 
{{AttributedCharacterIterator}} which would be beneficial if we start using 
Rich Text and utilize some of the java.text classes. What I don't like about is 
that there strong type system for that. 

> Rewrite formatter for interactive form fields
> ---------------------------------------------
>
>                 Key: PDFBOX-4212
>                 URL: https://issues.apache.org/jira/browse/PDFBOX-4212
>             Project: PDFBox
>          Issue Type: Improvement
>          Components: AcroForm
>    Affects Versions: 2.0.9, 3.0.0 PDFBox
>            Reporter: Maruan Sahyoun
>            Priority: Major
>              Labels: Appearance
>
> With the inclusion of GSUB information there are additional capabilities for 
> text formatting as well as additional language support. 
> This ticket will track the rewrite/enhancement of the current text formatter 
> which should also include better font handling/handling of missing characters 
> in line with how Acrobat handles such situations. 



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