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Java: Convert PDF to PDF/A

PDF/A is a kind of PDF format designed for archiving and long-term preservation of electronic documents. Unlike paper documents that are easily damaged or smeared, PDF/A format ensures that documents can be reproduced in exactly the same way even after long-term storage. This article will demonstrate how to convert PDF to PDF/A-1A, 2A, 3A, 1B, 2B and 3B compliant PDF using Spire.PDF for Java.

Install Spire.PDF for Java

First of all, you're required to add the Spire.PDF.jar file as a dependency in your Java program. The JAR file can be downloaded from this link. If you use Maven, you can easily import the JAR file in your application by adding the following code to your project's pom.xml file.

  • Package Manager
<repositories>
    <repository>
        <id>com.e-iceblue</id>
        <name>e-iceblue</name>
        <url>https://repo.e-iceblue.com/nexus/content/groups/public/</url>
    </repository>
</repositories>
<dependencies>
    <dependency>
        <groupId>e-iceblue</groupId>
        <artifactId>spire.pdf</artifactId>
        <version>4.12.1</version>
    </dependency>
</dependencies>

Convert PDF to PDF/A

The detailed steps are as follows:

  • Create a PdfStandardsConverter instance, and pass in a sample PDF file as a parameter.
  • Convert the sample file to PdfA1A conformance level using PdfStandardsConverter.toPdfA1A() method.
  • Convert the sample file to PdfA1B conformance level using PdfStandardsConverter. toPdfA1B() method.
  • Convert the sample file to PdfA2A conformance level using PdfStandardsConverter. toPdfA2A() method.
  • Convert the sample file to PdfA2B conformance level using PdfStandardsConverter. toPdfA2B() method.
  • Convert the sample file to PdfA3A conformance level using PdfStandardsConverter. toPdfA3A() method.
  • Convert the sample file to PdfA3B conformance level using PdfStandardsConverter. toPdfA3B() method.
  • Java
import com.spire.pdf.conversion.PdfStandardsConverter;

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

        //Create a PdfStandardsConverter instance, and pass in a sample file as a parameter
        PdfStandardsConverter converter = new PdfStandardsConverter("sample.pdf");

        //Convert to PdfA1A
        converter.toPdfA1A("output/ToPdfA1A.pdf");

        //Convert to PdfA1B
        converter.toPdfA1B("output/ToPdfA1B.pdf");

        //Convert to PdfA2A
        converter.toPdfA2A( "output/ToPdfA2A.pdf");

        //Convert to PdfA2B
        converter.toPdfA2B("output/ToPdfA2B.pdf");

        //Convert to PdfA3A
        converter.toPdfA3A("output/ToPdfA3A.pdf");

        //Convert to PdfA3B
        converter.toPdfA3B("output/ToPdfA3B.pdf");
    }
}

Java: Convert PDF to PDF/A

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