[PDFBOX-4645] impossible to use own TrueTypeFonts in acroForm (and font also not embedded)

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Not A Bug
• Affects Version/s: 2.0.12, 2.0.13, 2.0.14, 2.0.15, 2.0.16
• Component/s: AcroForm, PDModel
• Assignee: Unassigned
• Reporter: André Hertwig
• Created: 06/Sep/19 11:38
• Updated: 07/Sep/19 13:31
• Resolved: 06/Sep/19 14:15

Description

Hi

I have a PDF form and want to add additional fonts, because the default fonts does not allow cyrillic or greek chars for example.

I add the font as following (LiberationSans-Regular):

PDResources formResources = acroForm.getDefaultResources();
try (InputStream defaultTTFont1 = new FileInputStream(myFontFile)){
	
	PDFont font2 = PDType0Font.load(pdfDocument, defaultTTFont1, true);
	COSName fontName = formResources.add(font2);
}
acroForm.setDefaultResources(formResources);

I debugged it, the valiable ttf is set.

When filling a text field with for example cyrillic letters an exception occurs, than I change the defaultAppereance of that field using the initially added font.
But the original TTF will not really used, instead there wil be created new font classes with a TTF of null, so it seems to be impossible to use a different TTF.
Furthermore the font will not be embedded in the resulting PDF.

PDCIDFontType2.<init>(COSDictionary, PDType0Font, TrueTypeFont) line: 75	<- initialized with TrueTypeFont = null
PDCIDFontType2.<init>(COSDictionary, PDType0Font) line: 62	
PDFontFactory.createDescendantFont(COSDictionary, PDType0Font) line: 139	
PDType0Font.<init>(COSDictionary) line: 192	
PDFontFactory.createFont(COSDictionary, ResourceCache) line: 97	
PDResources.getFont(COSName) line: 146	
PDDefaultAppearanceString.processSetFont(List<COSBase>) line: 173	
PDDefaultAppearanceString.processOperator(Operator, List<COSBase>) line: 132	
PDDefaultAppearanceString.processAppearanceStringOperators(byte[]) line: 108	
PDDefaultAppearanceString.<init>(COSString, PDResources) line: 86	
PDTextField(PDVariableText).getDefaultAppearanceString() line: 93	
AppearanceGeneratorHelper.<init>(PDVariableText) line: 100	
PDTextField.constructAppearances() line: 263	
PDTextField(PDTerminalField).applyChange() line: 228	
PDTextField.setValue(String) line: 219	

As a result of this behavoir I get the following warning:

WARN  org.apache.pdfbox.pdmodel.font.PDCIDFontType2 - Using fallback font LiberationSans for CID-keyed TrueType font LiberationSans-Regular

When opening the PDF afterwards, I will get an error from AcrobatReader, that the font "LiberationSans-Regular" could be found, because the font is not embedded... like my own fonts..

I tried it back to version 2.0.12 - always the same behavior.

Issue Links

• relates to: PDFBOX-4629 WARNING: Using fallback font 'LiberationSans' for 'LiberationSans'