In Word, you can set the background color according to different document layout design requirements. Common settings include setting a single color, gradient, or loading a specified picture to set it as a background. Next, use Java to set the above three kinds of Word page background colors.

Using tool: Spire.Doc for Java v2.2.0

Jar file import method

Method 1: Pass Download official website . Create a new directory under the program and name it (lib in this example); copy the jar under the lib folder of the control package (as shown in Figure 1 below) directly to the new directory in the program. After copying the jar file, right-click the jar file and select Add as Library. Complete the import (as shown in Figure 2 below).

Fig. 1:

Fig. 2:

Method 2: import through maven. Reference import method( https://www.e-iceblue.cn/licensing/install-spirepdf-for-java-from-maven-repository.html).

Java code example (for reference)

[example 1] add a single color background color

import com.spire.doc.*;
import com.spire.doc.documents.BackgroundType;
import java.awt.*;
import java.io.IOException;

public class BackgroundColor_Doc {
    public static void main (String[] args) throws IOException{
        //Load test file
        String input="test.docx";
        String output="backgroundcolor.docx";
        Document doc = new Document(input);

        //Set monochrome background
        doc.getBackground().setType(BackgroundType.Color);
        doc.getBackground().setColor(Color.PINK);

        //Save document
        doc.saveToFile(output,FileFormat.Docx_2013);
    }
}

[example 2] add a gradient background color

import com.spire.doc.*;
import com.spire.doc.documents.BackgroundType;
import com.spire.doc.documents.GradientShadingStyle;
import com.spire.doc.documents.GradientShadingVariant;
import java.awt.*;
import java.io.IOException;

public class GradientBackground_Doc {
    public static void main(String[] arg) throws IOException{
        //Load test document
        String input= "test.docx";
        String output="GradientBackgound.docx";
        Document doc = new Document(input);

        //Set gradient
        doc.getBackground().setType(BackgroundType.Gradient);
        doc.getBackground().getGradient().setColor1(Color.white);
        doc.getBackground().getGradient().setColor2(Color.green);
        doc.getBackground().getGradient().setShadingVariant(GradientShadingVariant.Shading_Middle);
        doc.getBackground().getGradient().setShadingStyle(GradientShadingStyle.Horizontal);

        //Save document
        doc.saveToFile(output, FileFormat.Docx_2010);
    }
}

[example 3] loading picture set as background

import com.spire.doc.*;
import com.spire.doc.documents.BackgroundType;
import java.io.IOException;

public class ImgBackground_Doc {
    public static void main(String[] arg) throws IOException {
        //load file
        String input= "test.docx";
        String output="ImgBackgound.docx";
        String img= "lye.png";
        Document doc = new Document(input);

        //Set picture background
        doc.getBackground().setType(BackgroundType.Picture);
        doc.getBackground().setPicture(img);

        //Save document
        doc.saveToFile(output, FileFormat.Docx);
    }
}

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