Java (485)
We have demonstrated how to use Spire.Doc for Java to add text watermark and image watermark to word document. This article will show you how to add WordArt to the Word header to get the multiple watermarks on the Word document:
Insert multiple text watermarks to Word
import com.spire.doc.Document;
import com.spire.doc.FileFormat;
import com.spire.doc.HeaderFooter;
import com.spire.doc.Section;
import com.spire.doc.documents.Paragraph;
import com.spire.doc.documents.ShapeLineStyle;
import com.spire.doc.documents.ShapeType;
import com.spire.doc.fields.ShapeObject;
import java.awt.*;
public class WordWatermark {
public static void main(String[] args) {
//Load the sample document
Document doc = new Document();
doc.loadFromFile("Sample.docx");
//Add WordArt shape and set the size
ShapeObject shape = new ShapeObject(doc, ShapeType.Text_Plain_Text);
shape.setWidth(60);
shape.setHeight(20);
//Set the text, position and sytle for the wordart
shape.setVerticalPosition(30);
shape.setHorizontalPosition(20);
shape.setRotation(315);
shape.getWordArt().setText("Confidential");
shape.setFillColor(Color.red);
shape.setLineStyle(ShapeLineStyle.Single);
shape.setStrokeColor(new Color(192, 192, 192, 255));
shape.setStrokeWeight(1);
Section section;
HeaderFooter header;
for (int n = 0; n < doc.getSections().getCount(); n++) {
section = doc.getSections().get(n);
//Get the header of section
header = section.getHeadersFooters().getHeader();
Paragraph paragraph1;
for (int i = 0; i < 4; i++) {
//Add the hearder to the paragraph
paragraph1 = header.addParagraph();
for (int j = 0; j < 3; j++) {
//copy the word are and add it to many places
shape = (ShapeObject) shape.deepClone();
shape.setVerticalPosition(50 + 150 * i);
shape.setHorizontalPosition(20 + 160 * j);
paragraph1.getChildObjects().add(shape);
}
}
}
//Save the document to file
doc.saveToFile("Result.docx", FileFormat.Docx_2013);
}
}
Effective screenshot:
When processing HTML file, you may sometimes find them render differently depending on the browser and screen size. By converting HTML to PDF, you can maintain the layout and formatting of your HTML files, ensuring that the content looks consistent across devices and platforms. In this article, you will learn how to convert a HTML file or a HTML string to PDF in Java 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>14.7.0</version>
</dependency>
</dependencies>
Convert an HTML File to PDF in Java
You can load an HTML file and then save it as a PDF file using the Document.saveToFile() method. The following are the detailed steps.
- Create a Document object.
- Load an HTML file using Document.loadFromFile() method.
- Convert the HTML file to PDF using Document.saveToFile(String fileName, FileFormat.PDF) method.
- Java
import com.spire.doc.*;
import com.spire.doc.documents.XHTMLValidationType;
public class htmlFileToPdf {
public static void main(String[] args) {
// Create a Document object
Document document = new Document();
// Load an HTML file into the document object
document.loadFromFile("sample1.html", FileFormat.Html, XHTMLValidationType.None);
// Save the HTML file to a PDF file
document.saveToFile("htmlFileToPdf.pdf", FileFormat.PDF);
document.dispose();
}
}
Convert an HTML String to PDF in Java
To convert an HTML string to PDF, you first need to add the HTML string to a paragraph in Word through the Paragraph.appendHTML() method, and then save the it as a PDF file. The following are the detailed steps.
- Create a Document object.
- Add a section using Document.addSection() method.
- Add a paragraph using Section.addParagraph() method.
- Specify the HTML string, and then add the HTML string to the paragraph using Paragraph.appendHTML() method.
- Save the document as a PDF file using Document.saveToFile(String fileName, FileFormat.PDF) method.
- Java
import com.spire.doc.*;
import com.spire.doc.documents.Paragraph;
import java.io.*;
public class htmlStringToPdf {
public static void main(String[] args) throws IOException {
// Create a Document object
Document document = new Document();
// Add a section to the document
Section sec = document.addSection();
// Add a paragraph to the section
Paragraph paragraph = sec.addParagraph();
// Specify the HTML string
String htmlString = "<html><head><title>HTML to Word Example</title><style>, body {font-family: 'Calibri';}, h1 {color: #FF5733; font-size: 24px; margin-bottom: 20px;}, " +
"p {color: #333333; font-size: 16px; margin-bottom: 10px;} ul {list-style-type: disc; margin-left: 20px; margin-bottom: 15px;}, " +
"li {font-size: 14px; margin-bottom: 5px;}, table {border-collapse: collapse; width: 100%; margin-bottom: 20px;}" +
"th, td {border: 1px solid #CCCCCC; padding: 8px; text-align: left;}, th {background-color: #F2F2F2; font-weight: bold;}, td {color: #0000FF;}</style></head>" +
"<body><h1>This is a Heading</h1><p>This is a paragraph demonstrating the conversion of HTML to Word document.</p>" +
"<p>Here's an example of an unordered list:</p><ul><li>Item 1</li><li>Item 2</li><li>Item 3</li></ul> " +
"<p>Here's a table:</p><table><tr><th>Product</th><th>Quantity</th><th>Price</th></tr><tr><td>Jacket</td>" +
"<td>30</td><td>$150</td></tr><tr><td>Sweater</td><td>25</td><td>$99</td></tr></table></body></html>";
// Append the HTML string to the paragraph
paragraph.appendHTML(htmlString);
// Save the HTML string to a pdf file
document.saveToFile("htmlStringToPDF.pdf", FileFormat.PDF);
document.dispose();
}
}
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.
This article demonstrates how to set dpi on x and y axis when converting an Excel worksheet to an image using Spire.XLS for Java.
import com.spire.xls.*;
public class ConvertExcelToImage {
public static void main(String[] args) {
//Create a Workbook object
Workbook wb = new Workbook();
//Load an Excel file
wb.loadFromFile("C:\\Users\\Administrator\\Desktop\\data.xlsx");
//Set dpi on x and y axis
wb.getConverterSetting().setXDpi(300);
wb.getConverterSetting().setYDpi(300);
//Declare a Worksheet variable
Worksheet sheet;
//Loop through the worksheets
for (int i = 0; i < wb.getWorksheets().size(); i++) {
//Get the specific worksheet
sheet = wb.getWorksheets().get(i);
//Convert worksheet to image
sheet.saveToImage("C:\\Users\\Administrator\\Desktop\\Output\\image-" + i + ".png");
}
}
}
