Create Documents with Document Writers - Java

// Add to import block 
import java.io.*; 
import java.nio.file.*; 
import java.util.*; 
 
import leadtools.*; 
import leadtools.codecs.*; 
import leadtools.document.writer.*; 

Platform.setLibPath("C:\\LEADTOOLS21\\Bin\\CDLL\\x64"); 
Platform.loadLibrary(LTLibrary.LEADTOOLS); 
Platform.loadLibrary(LTLibrary.CODECS); 
Platform.loadLibrary(LTLibrary.DOCUMENT_WRITER); 

static void CreatePdfDocument() 
{ 
    RasterCodecs codecs = new RasterCodecs(); 
    String dir = "C:\\LEADTOOLS21\\Resources\\Images"; 
    int pageNumber = 1; 
    String[] pdfFiles = GetFiles(dir, "*.pdf"); 
 
    DocumentFormat format = DocumentFormat.PDF; 
    String outFile = PathCombine(dir, "DocumentWriters." + DocumentWriter.getFormatFileExtension(format)); 
 
    codecs.getOptions().getRasterizeDocument().getLoad().setResolution(300); 
 
    DocumentWriter docWriter = new DocumentWriter(); 
 
    PdfDocumentOptions pdfOptions = (PdfDocumentOptions) docWriter.getOptions(format); 
    pdfOptions.setDocumentType(PdfDocumentType.PDFA); 
    pdfOptions.setImageOverText(true); 
    docWriter.setOptions(format, pdfOptions); 
 
    // Begin a new PDF document 
    docWriter.beginDocument(outFile,format); 
 
    // Add the pages 
    for (String file : pdfFiles) 
    { 
        DocumentWriterSvgPage page = new DocumentWriterSvgPage(); 
        page.setSvgDocument(codecs.loadSvg(file, pageNumber, null)); 
        if (pdfOptions.getImageOverText()) 
        { 
            // If we are using image/text, then load the overlay raster image 
            page.setImage(codecs.load(file, pageNumber)); 
        } 
        // Add the page to the created PDF document 
        docWriter.addPage(page);System.out.println("Added page " + pageNumber + " from " + file.substring(file.lastIndexOf("\\") + 1, file.lastIndexOf(".")) + "\n"); 
        // Dispose of resources 
        if (page.getSvgDocument() != null) 
            page.getSvgDocument().dispose(); 
        if (page.getImage() != null) 
            page.getImage().dispose(); 
    } 
    // Finalized document to disk 
    docWriter.endDocument(); 
    System.out.println("PDF document saved successfully!"); 
} 

static String[] GetFiles(String path, String searchPattern) 
{ 
    // Split the searchPattern incase we have directories in there 
    ArrayList<String> pattern = new ArrayList<>(Arrays.asList(searchPattern.split("/"))); 
 
    // Take the last element out from the array, as this will be the file pattern 
    String filePattern = pattern.remove(pattern.size() - 1); 
 
    // Insert the base path into the remaining list 
    pattern.add(0, path); 
 
    // Now lets concat the lot to create a base path 
    path = PathCombine(pattern.toArray(new String[pattern.size()])); 
 
    final Pattern regEx = Pattern.compile(filePattern.replace("*", ".*").replace("?", ".?")); 
    File directory = new File(path); 
 
    File[] matchingFiles = directory.listFiles(new FilenameFilter() { 
 
        @Override 
        public boolean accept(File dir, String filename) { 
            return new File(dir, filename).isFile() && regEx.matcher(filename).matches(); 
        } 
    }); 
 
    ArrayList<String> files = new ArrayList<>(); 
    assert matchingFiles != null; 
    for (File file : matchingFiles) { 
        files.add(file.getAbsolutePath()); 
    } 
 
    return files.toArray(new String[files.size()]); 
} 
 
static String PathCombine(String... paths) 
{ 
    File file = new File(paths[0]); 
 
    for (int i = 1; i < paths.length ; i++) { 
        file = new File(file, paths[i]); 
    } 
 
    return file.getPath(); 
}