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https://issues.apache.org/jira/browse/PDFBOX-2970?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15045662#comment-15045662
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Aaron Eischeid commented on PDFBOX-2970:
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I needed the flatten method recently as pdf.js in Firefox was not rendering
content of a pdf with fields filled in.
The documented method didn't work for me the form is gone so it stops
complaining, but the content I want to be present is missing. However, I found
the undocumented one that flatten() calls is perfect for me. refreshAppearences
seems to be a bit odd in that fonts get a little cut off or moved slightly,
also empty fields which I used as placholders for placing images get a couple
odd glyphs inserted, but overall pretty close.
also I already had the fields so makes sense to pass them in rather than have
flatten look them up again for me.
in short I think this method should be documented in the public docs.
public void flatten(List<PDField> fields, boolean refreshAppearances)
> Add capability to flatten AcroForm form fields
> ----------------------------------------------
>
> Key: PDFBOX-2970
> URL: https://issues.apache.org/jira/browse/PDFBOX-2970
> Project: PDFBox
> Issue Type: Improvement
> Components: AcroForm
> Affects Versions: 1.8.10, 2.0.0
> Reporter: Maruan Sahyoun
> Assignee: Maruan Sahyoun
> Attachments: AcroFormsBasicFields-filled.pdf,
> AcroFormsBasicFields.Acrobat.Flattened.pdf,
> AlignmentTests-filled.flattened.pdfbox.pdf, AlignmentTests-filled.pdf,
> AlignmentTests.Acrobat.Flattened.pdf
>
>
> There should be a capability to flatten AcroForm form fields.
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