pdfbox

问题 I am creating desktop JavaFX application for viewing PDF files. PDFs are at resource folder. I read resourse file as stream, then I create temporary file and use it to convert contents to image and show into ImageView. currentPdf = new File("current.pdf"); if (!currentPdf.exists()) { // In JAR InputStream inputStream = ClassLoader.getSystemClassLoader() .getResourceAsStream("PDFSample.pdf"); // Copy file OutputStream outputStream; try { outputStream = new FileOutputStream(currentPdf); } catch

问题 I wrote a simple java program to get the page number of a PDF document. This works for most of my documents, but it does not work for this one: http://web.itu.edu.tr/~pazarci/rtv/TEK_Digital%20Video%20Measurements_25W_14700_3.pdf The snippet of the code is below: document = PDDocument.load(docPath); System.out.println( docPath + ": " + document.getNumberOfPages() + " pages"); in which docPath points to the local path of this document. The program then halts here. It does not exit and does not

问题 I'm using PDFBox to read specific fields on a pdf document. Actually, I'm able to get all the informations I want with a pdf containing only one page. The PDF has fields with specific names and I can get all the fields and insert it in a database. I use this code with AccroForm to access the fields InputStream document = item.getInputStream(); pdf = PDDocument.load(new RandomAccessBufferedFileInputStream(document)); pdCatalog = pdf.getDocumentCatalog(); pdAcroForm = pdCatalog.getAcroForm();

问题 I have an X509Certificate, and a byte array that represents a raw signature created by a remote server (which has my private key). I'm trying to add this signature with PDFBox 2.0.18. For that, I need CMSSignedData object. How do I generate CmsSignedData without private key (only signature, public key, certificate)? 来源： https://stackoverflow.com/questions/60242213/bouncycastle-cmssigneddata-from-external-signature-and-public-key-certificate

问题 I'm using pdfbox 2.0.8 - need to create a layer and add some graphic there. I started from How do I make modifications to existing layer(Optional Content Group) in pdf? which however is based on 1.8. I tried to adapt to 2.0 and managed to create the layer, but it is completely unclear how then you can create a new resource and add it to the layer - i.e. how the props.putMapping(resourceName, layer); which was in 1.8 has to be rewritten 回答1: Equivalent to the PDFBox 1.8 code in the answer

问题 I have a pdf document (no form) where I want to disable the text searching using pdfBox (java). Following possibilities I can imagine: Flatten text Remove Text information (without removing text itself) Add overlay to document. Currently I've no idea how I can implement that. Does anyone has an idea how to solve that? 回答1: many thanks for your help here. I guess I found a way that fit to the requirements. (Honestly, not really clean): Add the rectangle to the address sections convert PDF to

问题 I have been trying to edit a PDF document to pre-fill form entries. I've got it working (sort of). The text I'm adding, goes in fine. However, other text that was already there seems to have gotten replaced with "&%£!£! symbols. I've worked out that it's something to do with the "contentStream" section in the code below. It seems to be the "setFont" line. If I remove it, the page remains OK... except that the "Hello Richard" text is no longer displayed! Help please! package pdfboxtest; import

问题 I was able to create a PDF with PDFBox (version 1.8.9) and then convert it to a PostScript file with the following code: DocFlavor flavor = DocFlavor.SERVICE_FORMATTED.PRINTABLE; StreamPrintServiceFactory[] factories = StreamPrintServiceFactory.lookupStreamPrintServiceFactories(flavor, DocFlavor.BYTE_ARRAY.POSTSCRIPT.getMimeType()); if (factories.length == 0) { throw new PrinterException("No PostScript factories available"); } PDDocument document = pdfGenerator.getDocument(); // Attributes

问题 I have some trouble to get this code working. The goal is to merge pdf with a loaded pdf in a PDDocument object. I don't want to use the mergeUtility of PdfBox because it implies to closed the PDDocument object. I have a lot of data to process and I use a loop to process it. Load and close a PDDocument will take too much time and resource (maybe I'm wrong but that the way it feel it). Here is my way to do it : for (String path:pathList) { /* ... */ if(path.endsWith("pdf")){ File pdfToMerge =

问题 I'm using the following set-up: Java 11.0.1 pdfbox 2.0.15 Objective: Rendering a pdf that contains Chinese characters Problem: java.lang.IllegalArgumentException: U+674E is not available in this font's encoding: WinAnsiEncoding I already tried: Using different fonts for Chinese character support. The latest one is NotoSansCJKtc-Regular.ttf Set font to unicode as described here: Java: Write national characters to PDF using PDFBox, however the used loadTTF method is deprecated. Using Arial