Microsoft Word provides a real-time word counter that counts the number of words in a document when you type. Beyond that, Microsoft Word also counts the number of pages, paragraphs and characters with or without spaces. In this article, you will learn how to programmatically count the number of words or characters in an existing Word document using Spire.Doc for Java.

Install Spire.Doc for Java

First of all, you're required to add the Spire.Doc.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.doc</artifactId>
        <version>14.1.3</version>
    </dependency>
</dependencies>

Count the Number of Words in a Word Document

The detailed steps are as follows:

• Create a Document instance.
• Load a sample Word document using Document.loadFromFile() method.
• Count the number of words using Document.getBuiltinDocumentProperties().getWordCount() method.
• Count the number of characters without spaces using Document.getBuiltinDocumentProperties().getCharCount() method.
• Count the number of characters with spaces using Document.getBuiltinDocumentProperties().getCharCountWithSpace() method.

import com.spire.doc.*;
public class countWordsNumber {
    public static void main(String[] args) {
        //Create a Document instance
        Document document = new Document();

        //Load a sample Word document
        document.loadFromFile("Demo.docx");

        //Count the number of words
        System.out.println("WordCount: " + document.getBuiltinDocumentProperties().getWordCount());

        //Count the number of characters without spaces
        System.out.println("CharCount: " + document.getBuiltinDocumentProperties().getCharCount());

        //Count the number of characters with spaces
        System.out.println("CharCountWithSpace: " + document.getBuiltinDocumentProperties().getCharCountWithSpace());
    }
}

Apply for a Temporary License

If you'd like to remove the evaluation message from the generated documents, or to get rid of the function limitations, please request a 30-day trial license for yourself.

PDF linearization, also known as "Fast Web View", is a way of optimizing PDF files. Ordinarily, users can view a multipage PDF file online only when their web browsers have downloaded all pages from the server. However, if the PDF file is linearized, the browsers can display the first page very quickly even if the full download has not been completed. This article will demonstrate how to convert a PDF to linearized in C# and VB.NET using Spire.PDF for .NET.

Install Spire.PDF for .NET

To begin with, you need to add the DLL files included in the Spire.PDF for.NET package as references in your .NET project. The DLLs files can be either downloaded from this link or installed via NuGet.

PM> Install-Package Spire.PDF

Convert PDF to Linearized

The following are the steps to convert a PDF file to linearized:

• Load a PDF file using PdfToLinearizedPdfConverter class.
• Convert the file to linearized using PdfToLinearizedPdfConverter.ToLinearizedPdf() method.

using Spire.Pdf.Conversion;

namespace ConvertPdfToLinearized
{
    class Program
    {
        static void Main(string[] args)
        {
            //Load a PDF file
            PdfToLinearizedPdfConverter converter = new PdfToLinearizedPdfConverter("Sample.pdf");
            //Convert the file to a linearized PDF
            converter.ToLinearizedPdf("Linearized.pdf");
        }
    }
}

Imports Spire.Pdf.Conversion

Namespace ConvertPdfToLinearized
    Friend Class Program
        Private Shared Sub Main(ByVal args As String())
            'Load a PDF file
            Dim converter As PdfToLinearizedPdfConverter = New PdfToLinearizedPdfConverter("Sample.pdf")
            'Convert the file to a linearized PDF
            converter.ToLinearizedPdf("Linearized.pdf")
        End Sub
    End Class
End Namespace

Open the result file in Adobe Acrobat and take a look at the document properties, you can see the value of “Fast Web View” is Yes which means the file is linearized.

Apply for a Temporary License

If you'd like to remove the evaluation message from the generated documents, or to get rid of the function limitations, please request a 30-day trial license for yourself.

Spire.XLS for Java offers the Workbook.addDigitalSignature() method and the Workbook.removeAllDigitalSignatures() method to add and remove the Excel digital signatures. This article will show you how to detect if an Excel document has been signed or not, and retrieve information about digital signatures in Java applications.

• Detect if an Excel is Digitally Signed or Not
• Get the Digital Signature Details in Excel

Install Spire.XLS for Java

First of all, you're required to add the Spire.Xls.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.xls</artifactId>
        <version>15.12.15</version>
    </dependency>
</dependencies>

Detect if an Excel is Digitally Signed or Not

Spire.XLS for Java offers the Workbook.isDigitallySigned() method to check whether an Excel document is digitally signed or not.

• Create a Workbook instance and load a sample Excel document using Workbook.loadFromFile() method.
• Determine if the workbook is digitally signed by Workbook.isDigitallySigned() method.
• Print out the results.

import com.spire.xls.*;

public class Test {
    public static void main(String[] args) throws Exception {

        //Create a Workbook instance
        Workbook workbook = new Workbook();

        //Load an Excel document
        workbook.loadFromFile("Sample.xlsx");

        //Detect if an Excel Document is digitally signed or not
        Boolean signature = workbook.isDigitallySigned();

       //Print the results
       if (signature) {
            System.out.println("Document has been signed");
        }
         else
        {
            System.out.println("Document has not been signed");
        }

    }
}

Get the Digital Signature Details in Excel

The following are the steps to get the details of the digital signatures in an Excel document.

• Create a Workbook instance and load a sample Excel document using Workbook.loadFromFile() method.
• Get the collection of digital signatures using Workbook.getDigitalSignatures() method.
• Get the details of a specific digital signature using the methods under IDigitalSignature object.

import com.spire.xls.*;
import com.spire.xls.core.interfaces.IDigitalSignature;
import com.spire.xls.core.interfaces.IDigitalSignatures;

import java.security.PrivateKey;
import java.security.cert.X509Certificate;
import java.util.Date;

public class Test {
    public static void main(String[] args) throws Exception {

        //Create a Workbook instance
        Workbook workbook = new Workbook();

        //Load an Excel document
        workbook.loadFromFile("Sample01.xlsx");

        //Get the collection of digital signatures
        IDigitalSignatures signatures = workbook.getDigitalSignatures();

        //Get the details of digital signatures
        for (IDigitalSignature digitalSignature : (Iterable) signatures) {
            X509Certificate info = digitalSignature.getX509Certificate();
            PrivateKey privateKey = digitalSignature.getPrivateKey();
            String comment = digitalSignature.getComments();
            Date date = digitalSignature.getSignTime();

            //Print out the results of the Excel digital signature
            System.out.println("Signatature Certificate:" + info + "\n" +
                    "Signature Comment：" + comment + "\n" +
                    "Sign Date：" + date + "\n" +
                    "PrivateKey:" + privateKey + "\n");
        }
    }
}

Apply for a Temporary License

If you'd like to remove the evaluation message from the generated documents, or to get rid of the function limitations, please request a 30-day trial license for yourself.