Java: Count the Number of Pages in PDF

Knowing the number of pages in a PDF helps you understand the length of the document, which is especially useful in scenarios where a large number of PDF documents need to be processed, such as office work, academic research, or legal document management. By getting the PDF page count, you can estimate the time required to process the document, thus rationalizing tasks and increasing efficiency. In this article, you will learn how to get the number of pages in a PDF file in Java 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.

<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>11.10.3</version>
    </dependency>
</dependencies>

Count the Number of Pages in a PDF File in Java

The PdfDocument.getPages().getCount() method provided by Spire.PDF for Java allows to quickly count the number of pages in a PDF file without opening it. The following are the detailed steps.

• Create a PdfDocument object.
• Load a sample PDF file using PdfDocument.loadFromFile() method.
• Count the number of pages in the PDF file using PdfDocument.getPages().getCount() method.
• Print out the result.

import com.spire.pdf.PdfDocument;

public class CountPdfPages {

    public static void main(String[] args) {

        //Create a PdfDocument instance
        PdfDocument pdf = new PdfDocument();

        //Load a PDF file
       pdf.loadFromFile("contract.pdf");

        //Count the number of pages in the PDF file
        int pageCount = pdf.getPages().getCount();

        //Output the result
        System.out.print("The number of pages in the PDF is: " + pageCount);
    }
}

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