นำตัวเลือกการลงนาม Java Stamp ไปใช้กับ GroupDocs.Signature เพื่อรับรองความถูกต้องของเอกสาร

<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;

String filePath = "path/to/your/document";
Signature signature = new Signature(filePath);

import com.groupdocs.signature.options.sign.StampSignOptions;

StampSignOptions signOptions = new StampSignOptions();
signOptions.setHeight(300);
signOptions.setWidth(300);

import com.groupdocs.signature.domain.enums.HorizontalAlignment;
import com.groupdocs.signature.domain.enums.VerticalAlignment;
import com.groupdocs.signature.domain.Padding;

signOptions.setVerticalAlignment(VerticalAlignment.Bottom);
signOptions.setHorizontalAlignment(HorizontalAlignment.Right);
Padding padding = new Padding();
padding.setRight(10);
padding.setBottom(10);
signOptions.setMargin(padding);

import com.groupdocs.signature.domain.Background;
import java.awt.Color;

Background background = new Background();
background.setColor(Color.ORANGE);
signOptions.setBackground(background);

signOptions.setBackgroundColorCropType(StampBackgroundCropType.OuterArea);

signOptions.setImageFilePath("path/to/stamp/image.jpg");
signOptions.setBackgroundImageCropType(StampBackgroundCropType.InnerArea);
signOptions.setAllPages(true);

import com.groupdocs.signature.domain.stamps.StampLine;
import com.groupdocs.signature.domain.SignatureFont;

StampSignOptions signOptions = new StampSignOptions();

// เส้นนอกเส้นแรก
StampLine outerLine1 = new StampLine();
outerLine1.setText("* European Union *");
outerLine1.setTextRepeatType(StampTextRepeatType.FullTextRepeat);

SignatureFont font1 = new SignatureFont();
font1.setSize(12);
font1.setFamilyName("Arial");

outerLine1.setFont(font1);
outerLine1.setHeight(30);
outerLine1.setTextColor(Color.WHITE);
outerLine1.setBackgroundColor(Color.BLUE);

signOptions.getOuterLines().add(outerLine1);

// เส้นนอกที่สองเป็นตัวคั่น
StampLine outerLine2 = new StampLine();
outerLine2.setHeight(2);
outerLine2.setBackgroundColor(Color.WHITE);

signOptions.getOuterLines().add(outerLine2);

// เส้นนอกที่สามพร้อมการออกแบบเพิ่มเติม
StampLine outerLine3 = new StampLine();
outerLine3.setText("* Entrepreneur *");
outerLine3.setTextColor(Color.BLUE);

SignatureFont font3 = new SignatureFont();
font3.setSize(15);
outerLine3.setFont(font3);
outerLine3.setHeight(30);

Border innerBorder = new Border();
innerBorder.setColor(Color.DARK_GRAY);
innerBorder.setDashStyle(DashStyle.Dot);
outerLine3.setInnerBorder(innerBorder);

Border outerBorder = new Border();
outerBorder.setColor(Color.BLUE);
outerLine3.setOuterBorder(outerBorder);

signOptions.getOuterLines().add(outerLine3);

import com.groupdocs.signature.domain.stamps.StampLine;
import com.groupdocs.signature.domain.SignatureFont;

// เส้นในเส้นแรก
StampLine innerLine1 = new StampLine();
innerLine1.setText("John");
innerLine1.setTextColor(Color.RED);

SignatureFont signFont1 = new SignatureFont();
signFont1.setSize(20);
signFont1.setBold(true);

innerLine1.setFont(signFont1);
innerLine1.setHeight(40);

signOptions.getInnerLines().add(innerLine1);

// เส้นในที่ 2 และ 3
StampLine innerLine2 = new StampLine();
innerLine2.setText("Smith");
innerLine2.setTextColor(Color.RED);

SignatureFont signFont2 = new SignatureFont();
signFont2.setSize(20);
signFont2.setBold(true);

innerLine2.setFont(signFont2);
innerLine2.setHeight(40);

signOptions.getInnerLines().add(innerLine2);

StampLine innerLine3 = new StampLine();
innerLine3.setText("SSN 1230242424");
innerLine3.setTextColor(Color.MAGENTA);

SignatureFont signFont3 = new SignatureFont();
signFont3.setSize(12);
signFont3.setBold(true);

innerLine3.setFont(signFont3);
innerLine3.setHeight(40);

signOptions.getInnerLines().add(innerLine3);