Al Phaba created PDFBOX-4066: -------------------------------- Summary: Flatten pdf does not remove acroform elements (checkboxes) Key: PDFBOX-4066 URL: https://issues.apache.org/jira/browse/PDFBOX-4066 Project: PDFBox Issue Type: Bug Components: AcroForm, Utilities Affects Versions: 2.0.8 Reporter: Al Phaba Attachments: TestForm.pdf, flattenAndMerge.pdf
I have a pdf with a lot of acroforms, I do some manipulation on it which results in a new pdf. So I have PDF-1 (which is the original one )and PDF-2 (just a duplication of PDF-1), now I want to merge them. Both PDFs have some acroforms for example: field_a, field_2... Before I merge them I flatten PDF-1, because I only want to have acrofields from PDF-2. When I check then my new merged PDF I can see that there are no visible fields on on the pages from PDF-1 and there are fields on pages of fields of PDF-2. At the first look it seems ok, but when I inspect the fields I can see that the merger has renamed all the fields for PDF-2 e.g. field_a_dummy123, field_b_dummy232 ... It seems to me, that flattening does not remove the fields and thats why the PDFMerger from PDFBox will rename the fields for PDF-2 because acrofields need to be unique.Another guess was that there is a bug in mergeAcroForm() {code:java} @Test public void flattenAndMerge() throws IOException { File testForm = new File(classLoader.getResource("./TestForm.pdf").getFile()); byte[] testFormAsByte = Files.readAllBytes(testForm.toPath()); byte[] testFormAsByte2 = Files.readAllBytes(testForm.toPath()); PDDocument pdf1 = PDDocument.load(testFormAsByte); PDAcroForm acroform = pdf1.getDocumentCatalog().getAcroForm(); acroform.flatten(); Path flattendedPdf = Files.createTempFile("flatten", ".pdf"); pdf1.save(flattendedPdf.toFile()); PDFMergerUtility merger = new PDFMergerUtility(); merger.addSource(new ByteArrayInputStream(Files.readAllBytes(flattendedPdf))); merger.addSource(new ByteArrayInputStream(testFormAsByte2)); merger.setDestinationFileName("./build/flattenAndMerge.pdf"); merger.mergeDocuments(MemoryUsageSetting.setupMainMemoryOnly()); } {code} Here is my SO Article [https://stackoverflow.com/questions/48271924/pdfbox-flatten-pdf-does-not-remove-acroform-elements?noredirect=1#comment83544858_48271924] -- This message was sent by Atlassian JIRA (v7.6.3#76005) --------------------------------------------------------------------- To unsubscribe, e-mail: dev-unsubscr...@pdfbox.apache.org For additional commands, e-mail: dev-h...@pdfbox.apache.org