Document doc1 = ConvertUtil.GetNewEngineDocument();
doc1.loadFromFile(inputFile_1);
String[] name1 = new String[]{"DJG_Black_Book", "DJG_Repairs_Expense", "DJG_Sale_Amount", "DJG_Dealer_Payment", "DJG_Auction_Fees"};
String[] value1 = new String[]{"20,000.00", "2,000.00", "13,500.00", "1,000.00", "500.00"};
doc1.getMailMerge().execute(name1, value1);
doc1.isUpdateFields(true);

Document doc2 = ConvertUtil.GetNewEngineDocument();
doc2.loadFromFile(inputFile_2);
String[] name2 = new String[]{"DJG_Black_Book", "DJG_Repairs_Expense", "DJG_Sale_Amount", "DJG_Dealer_Payment", "DJG_Auction_Fees"};
String[] value2 = new String[]{"50,000.00", "5,000.00", "3,500.00", "1,000.00", "200.00"};
doc2.getMailMerge().execute(name2, value2);
doc2.isUpdateFields(true);

CompareOptions options = new CompareOptions();
//set 'Moves'
options.setCompareMoves(true);
//set 'Case Changes'
options.setIgnoreCaseChanges(true);
//set 'Comments'
options.setIgnoreComments(true);
//set 'Fields'
options.setIgnoreFields(true);
//set 'Footnotes'
options.setIgnoreFootnotes(true);
//set 'Tables'
options.setIgnoreTables(true);
//set 'Textboxes'
options.setIgnoreTextboxes(true);
doc1.compare(doc2, "user", new Date(), options);
doc1.saveToFile(outputFile, FileFormat.Docx_2013);
doc1.close();
doc2.close();

Document doc = ConvertUtil.GetNewEngineDocument();
Section section = doc.addSection();
section.setTextDirection(TextDirection.Right_To_Left);
Paragraph titlePara = section.addParagraph();
titlePara.appendText("===== FarEastLayout Two-Lines-in-One Full Scenario Test =====\n\n");

titlePara.appendText("\n\n1. Basic Two-Lines-in-One: ");
// Basic Two-Lines-in-One Combine=true, no brackets, no vertical layout
Paragraph p1 = section.addParagraph();
TextRange farEastLayout = p1.appendText("Basic Two-Lines-in-One: One Two Three Four");
farEastLayout.getCharacterFormat().setFontSize(12);
farEastLayout.getCharacterFormat().setFontNameFarEast("Songti");
FarEastLayout layout1 = new FarEastLayout();
layout1.setCombine(true); // Two-Lines-in-One
farEastLayout.getCharacterFormat().setFarEastLayout(layout1);

// Two-Lines-in-One + various bracket styles
Paragraph p1Title = section.addParagraph();
p1Title.appendText("\n\n2. Two-Lines-in-One + Different Brackets: ");

for (CombineBrackets bracket : CombineBrackets.values()) {
    Paragraph pTmp = section.addParagraph();
    TextRange rt = pTmp.appendText("Bracket Type " + bracket.name() + ": A B C D");
    rt.getCharacterFormat().setFontSize(12);
    rt.getCharacterFormat().setFontNameFarEast("Songti");
    FarEastLayout layoutTmp = new FarEastLayout();
    layoutTmp.setCombine(true);
    layoutTmp.setCombineBrackets(bracket);
    rt.getCharacterFormat().setFarEastLayout(layoutTmp);
}

doc.saveToFile(outputFile, FileFormat.Docx);
doc.close();

public static void main(String[] args) throws IOException {
        // Create pdf document
        PdfDocument doc = new PdfDocument();
        // Load file from disk
        doc.loadFromFile("Sample.docx");
        // Load the X509 certificate for signature
        PdfPKCS7Formatter formatter = new PdfPKCS7Formatter(new PdfCertificate("gary.pfx", "e-iceblue"), false);
        // Create an instance of PdfOrdinarySignatureMaker using the loaded document and certificate
        PdfOrdinarySignatureMaker signatureMaker = new PdfOrdinarySignatureMaker(doc, formatter);
        // Create an instance of PdfCustomSignatureAppearance as the appearance for the signature
        IPdfSignatureAppearance signatureAppearance = new PdfCustomSignatureAppearance();
        // Make the signature with a specified name and the custom appearance
        signatureMaker.makeSignature("Signature", signatureAppearance);
        // Iterate through all hash algorithm types
        for (HashAlgorithmType hashAlg : HashAlgorithmType.values()) {
        // Skip SM3 (case-insensitive)
            if ("SM3".equalsIgnoreCase(hashAlg.name())) {
                continue;
            }
            try {
                // Set the current hash algorithm
                formatter.getProperties().setHashAlgorithm(hashAlg);
                String filePath = "AddImageSignature_" + hashAlg.name() + ".pdf";
                doc.saveToFile(filePath, FileFormat.PDF);
                System.out.println("Succeed：" + hashAlg.name());
            } catch (Exception ex) {
                System.out.println("Error HashAlgorithmType：" + hashAlg.name());
                System.out.println("Error Info：" + ex.getMessage());
            }
        }
        // Close the document
        doc.close();
    }
    // Custom signature appearance implementation
    public static class PdfCustomSignatureAppearance implements IPdfSignatureAppearance {
        @Override
        public void generate(PdfCanvas pdfCanvas) {
            // Set font size
            int fontSize = 10;
            // Create Arial font
            PdfTrueTypeFont font = new PdfTrueTypeFont(new Font("Arial", Font.PLAIN, fontSize), true);
            // Set line height
            float lineHeight = fontSize;
            // Draw text string
            pdfCanvas.drawString("AAAAAAAAAAA", font, PdfBrushes.getRed(), new Point.Float(0, 0));
            // Draw image at specified position
            pdfCanvas.drawImage(PdfImage.fromFile("E-iceblue logo.png"), new Point.Float(20, 0));
        }
    }

OfdConverter converter = new OfdConverter(ofdFile.getAbsolutePath());
converter.getOptions().setDefaultFontName(fontName);
converter.toPdf(PdfPath);

CustomProgressNotifier progressNotifier =new CustomProgressNotifier(output_txt);
    ofdConverter ofdconverter=new Ofdconverter（inputPath);
    ofdconverter.registerProgressNotifier(progressNotifier);
    ofdConverter.toPdf(outputPath);

    CustomProgressNotifier progressNotifier2=new CustomProgressNotifier(output_txt2);
    PdfToWordConverter converter=new PdfTowordConverter(inputPath2);
    converter.registerProgressNotifier(progressNotifier2);
    converter.saveToDocx(outputPath2)

PdfDocument pdf = new PdfDocument();
pdf.loadFromFile(inputFile);
pdf.getViewerPreferences().setReadingDirection(PdfReadingDirection.LeftToRight);
pdf.setLanguage("zh-CN");
pdf.saveToFile(outputFile , FileFormat.PDF);

PdfDocument document = new PdfDocument();
PdfPageBase pdfPageBase = document.getPages().add();
pdfPageBase.getCanvas().drawString("Hello, World!",
new PdfFont(PdfFontFamily.Helvetica, 30f),
PdfBrushes.getBlack(), 10, 10);

PdfCertificate certificate = new PdfCertificate(path+"gary.pfx", "e-iceblue");
PdfPKCS7Formatter formatter = new PdfPKCS7Formatter(certificate, false);
String timeStampUrl = "https://rfc3161.ai.moda/adobe";
formatter.setTimestampService(new TSAHttpService(timeStampUrl));
formatter.setOCSPService(new OCSPHttpService(null));

PdfMDPSignatureMaker signatureMaker = new PdfMDPSignatureMaker (document, formatter, PdfMDPSignatureMaker.Level2Permissions);
signatureMaker.makeSignature("signName");
com.spire.pdf.interactive.digitalsignatures.PdfSignature signature = signatureMaker.getSignature();
signature.setName("Gary");
// signature.setReason("This is the final version.");
signature.setLocation("U.S.");
signature.setContactInfo("112554");

PdfSignatureAppearance appearance = new PdfSignatureAppearance(signature);
appearance.setNameLabel("Signer: ");
// appearance.setReasonLabel("Reason: ");
appearance.setLocationLabel("Location: ");
appearance.setContactInfoLabel("Phone: ");

PdfImage image = PdfImage.fromFile(path+"logo.png");
appearance.setSignatureImage(image);

appearance.setGraphicMode(GraphicMode.SignImageAndSignDetail);

Rectangle2D rect = new Rectangle2D.Float();
rect.setFrame(new Point2D.Float(90, 550), new Dimension(150, 80));

signatureMaker.makeSignature("Signature", pdfPageBase,
    (float) rect.getMinX(), (float) rect.getMinY(),
    (float) rect.getWidth(), (float) rect.getHeight(),
    appearance);

String output = "signature.pdf";
document.saveToFile(path+output, FileFormat.PDF);
document.close(); 

IAutoShape shapeFormula = slide.Shapes.AppendShape(ShapeType.Rectangle, new RectangleF(40, currentTop, shapeWidth, formulaHeight));

// Insert LaTeX formula
TextParagraph formulaPara = shapeFormula.TextFrame.Paragraphs.AddParagraphFromLatexMathCode(latex);

// Export as MathML
string mathML = formulaPara.ExportMathML();

// Export as LaTeX
string LaTex = formulaPara.ExportLaTex();

PdfDocument pdf = new PdfDocument();
pdf.loadFromFile(inputFile);
pdf.getViewerPreferences().setReadingDirection(PdfReadingDirection.LeftToRight);
pdf.setLanguage("zh-CN");
pdf.saveToFile(outputFile , FileFormat.PDF);

PdfDocument document = new PdfDocument();
PdfPageBase pdfPageBase = document.getPages().add();
pdfPageBase.getCanvas().drawString("Hello, World!",
new PdfFont(PdfFontFamily.Helvetica, 30f),
PdfBrushes.getBlack(), 10, 10);

PdfCertificate certificate = new PdfCertificate(path+"gary.pfx", "e-iceblue");
PdfPKCS7Formatter formatter = new PdfPKCS7Formatter(certificate, false);
String timeStampUrl = "https://rfc3161.ai.moda/adobe";
formatter.setTimestampService(new TSAHttpService(timeStampUrl));
formatter.setOCSPService(new OCSPHttpService(null));

PdfMDPSignatureMaker signatureMaker = new PdfMDPSignatureMaker (document, formatter, PdfMDPSignatureMaker.Level2Permissions);
signatureMaker.makeSignature("signName");
com.spire.pdf.interactive.digitalsignatures.PdfSignature signature = signatureMaker.getSignature();
signature.setName("Gary");
// signature.setReason("This is the final version.");
signature.setLocation("U.S.");
signature.setContactInfo("112554");

PdfSignatureAppearance appearance = new PdfSignatureAppearance(signature);
appearance.setNameLabel("Signer: ");
// appearance.setReasonLabel("Reason: ");
appearance.setLocationLabel("Location: ");
appearance.setContactInfoLabel("Phone: ");

PdfImage image = PdfImage.fromFile(path+"logo.png");
appearance.setSignatureImage(image);

appearance.setGraphicMode(GraphicMode.SignImageAndSignDetail);

Rectangle2D rect = new Rectangle2D.Float();
rect.setFrame(new Point2D.Float(90, 550), new Dimension(150, 80));

signatureMaker.makeSignature("Signature", pdfPageBase,
    (float) rect.getMinX(), (float) rect.getMinY(),
    (float) rect.getWidth(), (float) rect.getHeight(),
    appearance);

String output = "signature.pdf";
document.saveToFile(path+output, FileFormat.PDF);
document.close(); 

SPIRE_OFFICE_LICENSE_KEY 
SPIRE_DOC_LICENSE_KEY 
SPIRE_LICENSE_KEY