[PDFBOX-3597] PDAcroForm.refreshAppearances() does not respect updated fonts

• Type: Bug
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Affects Version/s: 2.0.3
• Component/s: PDModel
• External issue URL: https://drive.google.com/drive/folders/0B6ExNaWGFzvnUWF5ZElPZXpFMVE?usp=sharing
• Assignee: Unassigned
• Reporter: Matt Wise
• Created: 27/Nov/16 04:54
• Updated: 29/Jan/17 09:22

Description

I have attached example files in the External issue URL link.

I am trying to embed a subset of a font into my pdf after populating the fields. If I don't run refreshAppearances() the values will be put into the fields, but will only be visible when the field is selected (likely another bug).

To work around this, I am trying to set the default appearance on the fields manually to reflect the embedded font. If I embed the whole font, it works as expected, however when I try to embed a subset of the font it fails:
Exception in thread "main" java.lang.IllegalArgumentException: No glyph for U+540D in font AAWTXC+ArialUnicodeMS
at org.apache.pdfbox.pdmodel.font.PDCIDFontType2.encode(PDCIDFontType2.java:400)
at org.apache.pdfbox.pdmodel.font.PDType0Font.encode(PDType0Font.java:351)
at org.apache.pdfbox.pdmodel.font.PDFont.encode(PDFont.java:316)
at org.apache.pdfbox.pdmodel.font.PDFont.getStringWidth(PDFont.java:345)
at org.apache.pdfbox.pdmodel.interactive.form.PlainTextFormatter.format(PlainTextFormatter.java:195)
at org.apache.pdfbox.pdmodel.interactive.form.AppearanceGeneratorHelper.insertGeneratedAppearance(AppearanceGeneratorHelper.java:422)
at org.apache.pdfbox.pdmodel.interactive.form.AppearanceGeneratorHelper.setAppearanceContent(AppearanceGeneratorHelper.java:288)
at org.apache.pdfbox.pdmodel.interactive.form.AppearanceGeneratorHelper.setAppearanceValue(AppearanceGeneratorHelper.java:170)
at org.apache.pdfbox.pdmodel.interactive.form.PDTextField.constructAppearances(PDTextField.java:263)
at org.apache.pdfbox.pdmodel.interactive.form.PDAcroForm.refreshAppearances(PDAcroForm.java:318)
at test_pdfbox.TestPDFBox.main(TestPDFBox.java:45)

It would appear that after I call form.setDefaultResources with the updated font, refreshAppearances is still trying to use the old font as the appearance, although I may be wrong.

Expected:
appearances are updated, subset of font is embedded.