Hi PdfBox Team, may I ask if this issue is still being addressed? I'd be happy to help with additional documents or test code.
Thanks Markus > -----Ursprüngliche Nachricht----- > Von: Markus Mensinger via users <[email protected]> > Gesendet: Freitag, 13. Februar 2026 08:49 > An: [email protected] > Cc: Markus Mensinger <[email protected]> > Betreff: AW: PdfBox renames RadioButton with Umlaut > > Hi Andreas, > > sorry for the late reply. I didn't receive the email about your message. > > The original document. No radio button is selected: > https://signotecgmbh- > my.sharepoint.com/:b:/g/personal/markus_mensinger_signotec_de/IQAG_LM96 > YsmR5Bbs-B6GdjZAe_Ohx5ZXtTrGjqhBhbnvlI?e=hLirvE > > Radio button "männlich" selected with PdfBox: > https://signotecgmbh- > my.sharepoint.com/:b:/g/personal/markus_mensinger_signotec_de/IQBd-bq- > lOxGSoxfH6RRv1DiAd05O7Pq6qRBlJJBafeklP4?e=SHrniB > > Radio button "männlich" selected with Acrobat Pro: > https://signotecgmbh- > my.sharepoint.com/:b:/g/personal/markus_mensinger_signotec_de/IQB5nYOYQ > EJ8QJMizyMsxnTjAXDRsSO12tsNbvLwQxKbZ3Y?e=bNhHOR > > Thanks > Markus > > > -----Ursprüngliche Nachricht----- > > Von: Markus Mensinger via users <[email protected]> > > Gesendet: Freitag, 6. Februar 2026 17:06 > > An: [email protected] > > Cc: Markus Mensinger <[email protected]> > > Betreff: PdfBox renames RadioButton with Umlaut > > > > [Sie erhalten nicht häufig E-Mails von [email protected]. > > Weitere Informationen, warum dies wichtig ist, finden Sie unter > > https://aka.ms/LearnAboutSenderIdentification ] > > > > Hi PdfBox team, > > > > is the following maybe an issue in PdfBox? > > > > Steps to reproduce > > =============== > > 1. Create a document that contains a radio button with Umlaut in name. > > I can give you an example document. > > Let's say: A radio group "Geschlecht" with the buttons "männlich" and > "weiblich". > > Do not use PdfBox for this step. I used Acrobat Pro 2020. > > The name/value of the "männlich" button is encoded as "/m#e4nnlich" in > > the PDF. > > > > 2. Update the value of the radio group with PdfBox to "männlich" and > > save it to a new document. > > > > import java.io.File; > > import org.apache.pdfbox.Loader; > > import org.apache.pdfbox.pdmodel.PDDocument; > > > > public class UpdateRadioGroup { > > > > private static final String INPUT_FILE = "form_empty.pdf"; > > private static final String OUTPUT_FILE = "form_selected.pdf"; > > private static final String FIELD_NAME = "Geschlecht"; > > private static final String FIELD_VALUE = "männlich"; > > > > public static void main(String[] args) > > throws Exception { > > > > try (PDDocument document = Loader.loadPDF(new File(INPUT_FILE))) { > > document.getDocumentCatalog() > > .getAcroForm(null) > > .getField(FIELD_NAME) > > .setValue(FIELD_VALUE); > > > > document.save(new File(OUTPUT_FILE)); > > } > > } > > } > > > > 3. Validate the name/value of the "männlich" button in the new > > document in a text editor. PdfBox encodes "männlich" to > > "/m#c3#a4nnlich" (see > > COSName.writePDF() ). > > > > The problem > > =============== > > PdfBox renames the radio button from "männlich" to "männlich". Or > > "/m#e4nnlich" to "/m#c3#a4nnlich" in PDF-format. > > When you read the document again, PdfBox converts "#c3#a" to "ä" but > > all other programs do not. I tested Acrobat Pro 2020, actual Acrobat > > Reader, PDFXplorer from https://www.o2sol.com > > > > > > Thanks > > Markus > > > > --------------------------------------------------------------------- > > To unsubscribe, e-mail: [email protected] > > For additional commands, e-mail: [email protected] > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: [email protected] > For additional commands, e-mail: [email protected] --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
