import com.spire.pdf.*;
import com.spire.pdf.general.find.PdfTextFind;
import com.spire.pdf.general.find.PdfTextFindCollection;
import com.spire.pdf.graphics.PdfBrushes;
import com.spire.pdf.graphics.PdfRGBColor;
import com.spire.pdf.graphics.PdfSolidBrush;
import com.spire.pdf.graphics.PdfTrueTypeFont;

import java.awt.*;
import java.awt.geom.Rectangle2D;

public class FindAndReplaceText {
  public static void main(String[] args) {
    //加載示例PDF文檔
    PdfDocument pdf = new PdfDocument();
    pdf.loadFromFile("咖啡豆.pdf");

    //遍歷文檔每一頁(yè)
    for (int i = 0; i < pdf.getPages().getCount(); i++)
    {
      //獲取所有頁(yè)面
      PdfPageBase page = pdf.getPages().get(i);

      //查找指定文本
      PdfTextFindCollection textFindCollection;
      textFindCollection = page.findText("咖啡",false);

      //創(chuàng)建畫刷、字體
      PdfSolidBrush brush1 = new PdfSolidBrush(new PdfRGBColor(Color.red));
      PdfTrueTypeFont font1= new PdfTrueTypeFont(new Font("宋體",Font.PLAIN,9),true);

      //用新的文本字符替換原有文本
      Rectangle2D rec;
      for(PdfTextFind find: textFindCollection.getFinds())
      {
        rec = find.getBounds();
        page.getCanvas().drawRectangle(PdfBrushes.getWhite(), rec);
        page.getCanvas().drawString("Coffee", font1, brush1, rec);
      }

    }

    //保存文檔
    pdf.saveToFile("FindAndReplaceText.pdf");
    pdf.close();
  }
}