Hello again, Unfortunately, we are not allowed us to use file-sharing services in our company. If you know of another way to send the files to the community, please let us know.
Thanks for your support Neonila Dietrich Developer -- Governikus GmbH & Co. KG Hochschulring 4 28359 Bremen, Germany Telefon: +49 421 204 95 - 0 E-Mail: [email protected]<mailto:[email protected]> www.governikus.de<https://www.governikus.de/> Von: Tilman Hausherr <[email protected]> Gesendet: Mittwoch, 29. April 2026 14:36 An: [email protected] Betreff: Re: PDF-UA-compliance error by creating of signature fields in pdfbox version higher than 2.0.31 ACHTUNG: Diese E-Mail stammt von einem externen Absender. Bitte vermeide es, Anhänge oder externe Links zu öffnen. Hi, Please upload the files to a sharehoster that doesn't require registration. Are you saying that it did work with 2.0.30 ? If so, then include these as well. Tilman Am 29.04.2026 um 14:31 schrieb Dietrich, Neonila: Hello pdfbox community, since Apache PDFBox version 2.0.31, we are not able to generate PDF-UA-compliant signature fields. We are attaching a code snippet that we use to create visible signature fields. Please let me know what I need to change in this code so that the PDF document remains PDF-UA-compliant. We verify PDF-UA compliance by using the PAC APP ( https://www.axes4.com/de ) Two sample documents are attached to this email: original and result with signatures fields. /** used with pdfbox 2.0.36 */ public static void main(String[] args) { File inputFile = new File("PDF_UA_original.pdf"); File outputFile = new File("result.pdf"); float xPos = 50; float yStart = 600; float width = 200; float high = 50; float distance = 70; try (PDDocument doc = PDDocument.load(inputFile)) { PDDocumentCatalog documentCatalog = doc.getDocumentCatalog(); PDPageTree allPages = documentCatalog.getPages(); PDPage pdPage = allPages.get(0); PDAcroForm acroForm = documentCatalog.getAcroForm(); if (acroForm == null) { acroForm = new PDAcroForm(doc); documentCatalog.setAcroForm(acroForm); } for ( int i = 0 ; i < 4 ; i++ ) { PDSignatureField pdSignatureField = new PDSignatureField(acroForm); pdSignatureField.setPartialName("SigField_" + UUID.randomUUID().toString()); pdSignatureField.setAlternateFieldName("Alt_" + pdSignatureField.getPartialName()); float currentY = yStart - (i * distance); PDRectangle rectangle = new PDRectangle(xPos, currentY, width, high); PDAnnotationWidget widget = pdSignatureField.getWidgets().get(0); widget.setRectangle(rectangle); PDAppearanceDictionary pdAppearanceDictionary = new PDAppearanceDictionary(); PDAppearanceStream appearanceStream = new PDAppearanceStream(doc); pdAppearanceDictionary.setNormalAppearance(appearanceStream); widget.setAppearance(pdAppearanceDictionary); widget.setPage(pdPage); acroForm.getFields().add(pdSignatureField); pdPage.getAnnotations().add(widget); pdPage.getCOSObject().setNeedToBeUpdated(true); doc.getSignatureFields().add(pdSignatureField); } doc.save( outputFile ); } catch (Exception e) { e.printStackTrace(); } } Best regards, Thank you very much for your support Neonila Dietrich Developer -- Governikus GmbH & Co. KG Hochschulring 4 28359 Bremen, Germany Telefon: +49 421 204 95 - 0 E-Mail: [email protected]<mailto:[email protected]> www.governikus.de<https://www.governikus.de/> [Governikus steht in Grossbuchstaben in einem Dunkelblau. Unter den Buchstaben K, U und S ist jeweils ein blauer Kreis, der vom K zum S jeweils dunkler wird.] Hauptsitz: Hochschulring 4, 28359 Bremen Geschäftsstellen: Universitätsstr. 2, 10117 Berlin | Herwarthstraße 1, 50672 Köln | Bahnhofstraße 14 (Krämerloft), 99084 Erfurt | Klostersteige 17, 87435 Kempten (Allgäu) Standort Governikus ITU GmbH: Jakobikirchhof 8, 20095 Hamburg Governikus GmbH & Co. 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