Java实现将PDF转为PDF/A

<repositories>
    <repository>
        <id>com.e-iceblue</id>
        <name>e-iceblue</name>
        <url>https://repo.e-iceblue.cn/repository/maven-public/</url>
    </repository>
</repositories>
<dependencies>
    <dependency>
        <groupId>e-iceblue</groupId>
        <artifactId>spire.pdf</artifactId>
        <version>5.1.0</version>
    </dependency>
</dependencies>

import com.spire.pdf.conversion.PdfStandardsConverter;

public class PDFtoPDFA {
    public static void main(String[]args){

        //创建PdfStandardsConverter类的对象，传入文档路径
        PdfStandardsConverter converter = new PdfStandardsConverter("sample.pdf");

        //转换为PdfA1A
        converter.toPdfA1A("ToPdfA1A.pdf");

        //转换为PdfA1B
        converter.toPdfA1B("ToPdfA1B.pdf");

        //转换为PdfA2A
        converter.toPdfA2A("ToPdfA2A.pdf");

        //转换为PdfA2B
        converter.toPdfA2B( "ToPdfA2B.pdf");

        //转换为PdfA3A
        converter.toPdfA3A( "ToPdfA3A.pdf");

        //转换为PdfA3B
        converter.toPdfA3B( "ToPdfA3B.pdf");
    }
}