Nikola Radosevic created PDFBOX-3848: ----------------------------------------
Summary: Get the exact original PDF that was signed(without signature fields) Key: PDFBOX-3848 URL: https://issues.apache.org/jira/browse/PDFBOX-3848 Project: PDFBox Issue Type: Bug Components: AcroForm, Signing Affects Versions: 2.0.6 Reporter: Nikola Radosevic Attachments: Example.pdf, Example_signed_final.pdf, Example_signed_orig.pdf, Example_Signed.pdf I am trying to get the original pdf from the signed pdf. I am able to remove the signature using doc.getSignatureDictionaries().get(0).getSignedContent(signedPDF); However, the signature field stays. However, when I try to remove the signature fields using the following code: PDDocument pdDoc = PDDocument.load(origPDF); PDDocumentCatalog catalog = pdDoc.getDocumentCatalog(); PDAcroForm form = catalog.getAcroForm(); List<PDField> acroFormFields = form.getFields(); for (PDField field: acroFormFields) { if (field.getFieldType().equalsIgnoreCase("Sig")) { System.out.println("START removing Sign Flags"); field.setReadOnly(true); field.setRequired(false); field.setNoExport(true); System.out.println("END removing Sign Flags"); System.out.println("START flattenning field"); field.getAcroForm().flatten(); field.getAcroForm().refreshAppearances(); System.out.println("END flattenning field"); //field.getAcroForm().refreshAppearances(); } The signature field is removed, but the image that was used for visible signature, somehow, magically appear. (The document that I load here is the one that has signature removed using origPDF = doc.getSignatureDictionaries().get(0).getSignedContent(signedPDF); See the attached files: Example.pdf (Original file) Example_Signed.pdf (Signed File) Example_Signed_orig.pdf (after removing the signature) Example_Signed_final.pdf (after flattening the Example_Signed_orig.pdf) See the stackoverflow post for more details: https://stackoverflow.com/questions/44843095/verifying-pdf-signature-in-java-using-bouncy-castle-and-pdfbox -- This message was sent by Atlassian JIRA (v6.4.14#64029) --------------------------------------------------------------------- To unsubscribe, e-mail: dev-unsubscr...@pdfbox.apache.org For additional commands, e-mail: dev-h...@pdfbox.apache.org