تنفيذ توقيع PDF في Java باستخدام GroupDocs.Signature

<dependency>
    <groupId>com.groupdocs</groupId>
    <artifactId>groupdocs-signature</artifactId>
    <version>23.12</version>
</dependency>

implementation 'com.groupdocs:groupdocs-signature:23.12'

import com.groupdocs.signature.Signature;

public class InitializeSignature {
    public static void main(String[] args) {
        Signature signature = new Signature("YOUR_DOCUMENT_DIRECTORY/sample.pdf");
        System.out.println("GroupDocs.Signature initialized successfully.");
    }
}

import com.groupdocs.signature.Signature;
import com.groupdocs.signature.exception.GroupDocsSignatureException;
import java.nio.file.Paths;
import java.io.File;

public class Feature1 {
    public static void run() throws Exception {
        String filePath = "YOUR_DOCUMENT_DIRECTORY/sample.pdf";
        String outputFilePath = new File("YOUR_OUTPUT_DIRECTORY", "SignedOutputSample.pdf").getPath();

        try {
            Signature signature = new Signature(filePath);
            System.out.println("Signature initialized and paths set.");
        } catch (Exception e) {
            throw new GroupDocsSignatureException(e.getMessage());
        }
    }
}

import com.groupdocs.signature.domain.enums.*;
import com.groupdocs.signature.domain.Padding;
import com.groupdocs.signature.domain.Border;
import com.groupdocs.signature.domain.DashStyle;
import com.groupdocs.signature.domain.extensions.LinearGradientBrush;
import com.groupdocs.signature.domain.font.SignatureFont;
import java.awt.Color;
import com.groupdocs.signature.options.sign.BarcodeSignOptions;

public class Feature2 {
    public static void configureBarcodeOptions() throws Exception {
        BarcodeSignOptions signOptions = new BarcodeSignOptions("12345678");
        signOptions.setEncodeType(BarcodeTypes.Code128);
        signOptions.setLeft(100);
        signOptions.setTop(100);
        signOptions.setVerticalAlignment(VerticalAlignment.Top);
        signOptions.setHorizontalAlignment(HorizontalAlignment.Right);

        Padding padding = new Padding();
        padding.setLeft(20);
        padding.setTop(20);
        signOptions.setMargin(padding);

        Border border = new Border();
        border.setColor(Color.GREEN);
        border.setDashStyle(DashStyle.DashLongDashDot);
        border.setWeight(2);
        border.setTransparency(0.5);
        border.setVisible(true);
        signOptions.setBorder(border);

        signOptions.setForeColor(Color.RED);
        SignatureFont font = new SignatureFont();
        font.setSize(12);
        font.setFamilyName("Comic Sans MS");
        signOptions.setFont(font);

        signOptions.setCodeTextAlignment(CodeTextAlignment.Above);

        Background background = new Background();
        background.setColor(Color.GREEN);
        background.setTransparency(0.5);
        background.setBrush(new LinearGradientBrush(Color.GREEN, Color.DARK_GRAY, 0));
        signOptions.setBackground(background);

        signOptions.setReturnContent(true);
        signOptions.setReturnContentType(FileType.PNG);
    }
}

import com.groupdocs.signature.Signature;
import com.groupdocs.signature.exception.GroupDocsSignatureException;
import com.groupdocs.signature.options.sign.BarcodeSignOptions;
import com.groupdocs.signature.domain.BaseSignature;

public class Feature3 {
    public static void signDocument(String filePath, BarcodeSignOptions signOptions) throws Exception {
        Signature signature = new Signature(filePath);
        String outputFilePath = filePath.replace(".pdf", "_Signed.pdf");

        try {
            com.groupdocs.signature.domain.signatures.SignResult signResult = signature.sign(outputFilePath, signOptions);
            System.out.println("Document signed successfully.");
        } catch (Exception e) {
            throw new GroupDocsSignatureException(e.getMessage());
        }
    }
}