List of usage examples for org.apache.pdfbox.pdfparser PDFStreamParser getTokens
public List<Object> getTokens()
From source file:airviewer.TextInAnnotationReplacer.java
License:Apache License
static void replaceText(PDDocument document, PDAnnotation anAnnotation, String newContents) { if (null != anAnnotation.getAppearance() && null != anAnnotation.getAppearance().getNormalAppearance()) { try {/*from www . java 2 s. c om*/ PDAppearanceStream annotationAppearanceStream = anAnnotation.getAppearance().getNormalAppearance() .getAppearanceStream(); PDFStreamParser parser = new PDFStreamParser(annotationAppearanceStream); parser.parse(); List<Object> tokens = parser.getTokens(); for (int j = 0; j < tokens.size(); j++) { Object next = tokens.get(j); if (next instanceof Operator) { Operator op = (Operator) next; //Tj and TJ are the two operators that display strings in a PDF if (op.getName().equals("Tj")) { // Tj takes one operand and that is the string to display so lets update that operator COSString previous = (COSString) tokens.get(j - 1); previous.setValue(newContents.getBytes(Charset.forName("UTF-8"))); } else if (op.getName().equals("TJ")) { COSArray previous = (COSArray) tokens.get(j - 1); for (int k = 0; k < previous.size(); k++) { Object arrElement = previous.getObject(k); if (arrElement instanceof COSString) { COSString cosString = (COSString) arrElement; cosString.setValue(newContents.getBytes(Charset.forName("UTF-8"))); } } } } } try (OutputStream out = annotationAppearanceStream.getStream().createOutputStream()) { ContentStreamWriter tokenWriter = new ContentStreamWriter(out); tokenWriter.writeTokens(tokens); } anAnnotation.getAppearance().setNormalAppearance(annotationAppearanceStream); } catch (IOException ex) { Logger.getLogger(TextInAnnotationReplacer.class.getName()).log(Level.SEVERE, null, ex); } } }
From source file:org.apache.fop.render.pdf.pdfbox.PDFWriter.java
License:Apache License
public String writeText(PDStream pdStream) throws IOException { PDFStreamParser pdfStreamParser = new PDFStreamParser(pdStream); pdfStreamParser.parse();/* ww w . j a v a 2 s. c o m*/ List<Object> it = pdfStreamParser.getTokens(); List<COSBase> arguments = new ArrayList<COSBase>(); for (Object o : it) { if (o instanceof Operator) { Operator op = (Operator) o; readPDFArguments(op, arguments); s.append(op.getName() + "\n"); arguments.clear(); if (op.getImageParameters() != null) { for (Map.Entry<COSName, COSBase> cn : op.getImageParameters().entrySet()) { arguments.add(cn.getKey()); arguments.add(cn.getValue()); } readPDFArguments(op, arguments); s.append("ID " + new String(op.getImageData(), "ISO-8859-1")); arguments.clear(); s.append("EI\n"); } } else { arguments.add((COSBase) o); } } return s.toString(); }
From source file:org.lockss.pdf.MockPdfTokenStream.java
License:Open Source License
/** * <p>// www . j a v a 2s .co m * Makes a fake PDF token stream from parsing the given input stream. * </p> * * @param inputStream * An input stream of PDF token stream source. * @throws IOException * if parsing fails or an I/O error occurs. * @since 1.67 */ public MockPdfTokenStream(InputStream inputStream) throws IOException { PDFStreamParser parser = new PDFStreamParser(inputStream, new RandomAccessBuffer()); parser.parse(); List<Object> pdfBoxTokens = parser.getTokens(); this.pdfTokens = new ArrayList<PdfToken>(pdfBoxTokens.size()); for (Object pdfBoxToken : pdfBoxTokens) { this.pdfTokens.add(convert(pdfBoxToken)); } }
From source file:Utilities.GlobalVar.java
public static void updateSeqNum(PDDocument doc, String cycle) throws IOException { int sequenceNum = 1; List pages = doc.getDocumentCatalog().getAllPages(); for (int i = 0; i < pages.size(); i++) { PDPage page = (PDPage) pages.get(i); PDStream contents = page.getContents(); PDFStreamParser parser = new PDFStreamParser(contents.getStream()); parser.parse();//from w w w. j a v a 2 s . co m List tokens = parser.getTokens(); for (int j = 0; j < tokens.size(); j++) { Object next = tokens.get(j); if (next instanceof PDFOperator) { PDFOperator op = (PDFOperator) next; // Tj and TJ are the two operators that display strings in a PDF if (op.getOperation().equals("Tj")) { // Tj takes one operator and that is the string // to display so lets update that operator COSString previous = (COSString) tokens.get(j - 1); String string = previous.getString(); // System.out.println(string); // System.out.println(string.charAt(5)); if (string.contains("/0")) { String seq = cycle + "/" + GlobalVar.globalCountGenerator5Digit(sequenceNum); string = string.replaceFirst(string, seq); previous.reset(); previous.append(string.getBytes("ISO-8859-1")); sequenceNum++; break; } //Word you want to change. Currently this code changes word "Solr" to "Solr123" previous.reset(); previous.append(string.getBytes("ISO-8859-1")); } else if (op.getOperation().equals("TJ")) { COSArray previous = (COSArray) tokens.get(j - 1); for (int k = 0; k < previous.size(); k++) { Object arrElement = previous.getObject(k); if (arrElement instanceof COSString) { COSString cosString = (COSString) arrElement; String string = cosString.getString(); // System.out.println(string); if (string.contains("/00")) { String seq = cycle + "/" + GlobalVar.globalCountGenerator5Digit(sequenceNum); string = string.replaceFirst(string, seq); cosString.reset(); cosString.append(string.getBytes("ISO-8859-1")); sequenceNum++; break; } // Currently this code changes word "Solr" to "Solr123" cosString.reset(); cosString.append(string.getBytes("ISO-8859-1")); // break; } } } } } // now that the tokens are updated we will replace the page content stream. PDStream updatedStream = new PDStream(doc); OutputStream out = updatedStream.createOutputStream(); ContentStreamWriter tokenWriter = new ContentStreamWriter(out); tokenWriter.writeTokens(tokens); page.setContents(updatedStream); } }