Java (482)
PDF documents can be secured in several ways. When PDFs are protected with a permission password, readers can open the document without needing to enter a password, but they may not have permission to further manipulate the document, such as printing or copying the content. In this article, you will learn how to set security permissions for a PDF document in Java using Spire.PDF for Java library.
Install Spire.PDF for Java
First, 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>12.4.4</version>
</dependency>
</dependencies>
Add Security Permissions to a PDF Document in Java
Below are the steps to apply security permissions to a PDF document using Spire.PDF for Java.
- Create a PdfDocument object.
- Load a sample PDF file using PdfDocument.loadFileFile() method.
- Specify open password and permission password. The open password can be set to empty so that the generated document will not require a password to open.
- Encrypt the document with the open password and permission password, and set the security permissions using PdfDocument.getSecurity().encypt() method. This method takes PdfPermissionsFlags enumeration as a parameter, which defines user access permissions for an encrypted document.
- Save the document to another PDF file using PdfDocument.saveToFile() method.
- Java
//Create a PdfDocument object
PdfDocument pdf= new PdfDocument();
//Load a sample PDF file
pdf.loadFromFile("C:\\Users\\Administrator\\Desktop\\sample.pdf");
String output = "output/changeSecurityPermission_output.pdf";
// Create a PdfSecurityPolicy with the specified user password and owner password
PdfSecurityPolicy securityPolicy = new PdfPasswordSecurityPolicy("userpassword", "ownerpassword");
// Create a PdfDocumentPrivilege with desired permissions (e.g., allow filling form fields)
PdfDocumentPrivilege privilege = new PdfDocumentPrivilege();
privilege.setAllowFillFormFields(true);
privilege.setAllowPrint(true);
// Encrypt the PDF document using the specified security policy
pdf.encrypt(securityPolicy);
// Save the encrypted PDF document to the output file path
pdf.saveToFile(output, FileFormat.PDF);
// Close the PDF document to release resources
pdf.close();
// Dispose of the PDF document to free up system resources
pdf.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.
Before you email or share an ODT file with others, you may want to convert the file to PDF in order to make it accessible to anyone across multiple operating systems. In this article, you will learn how to convert ODT 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>14.4.0</version>
</dependency>
</dependencies>
Convert ODT to PDF using Java
The following are the steps to convert an ODT file to PDF:
- Create an instance of Document class.
- Load an ODT file using Document.loadFromFile() method.
- Convert the ODT file to PDF using Document.saveToFile(String fileName, FileFormat fileFormat) method.
- Java
import com.spire.doc.Document;
import com.spire.doc.FileFormat;
public class ConvertOdtToPdf {
public static void main(String[] args){
//Create a Document instance
Document doc = new Document();
//Load an ODT file
doc.loadFromFile("Sample.odt");
//Save the ODT file to PDF
doc.saveToFile("OdtToPDF.pdf", FileFormat.PDF);
}
}
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.
When creating reports in Word, we often encounter the situation where we need to copy and paste data from Excel to Word, so that readers can browse data directly in Word without opening Excel documents. In this article, you will learn how to convert Excel data into Word tables and preserve the formatting using Spire.Office for Java.
Install Spire.Office for Java
First, you're required to add the Spire.Office.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.office</artifactId>
<version>11.3.0</version>
</dependency>
</dependencies>
Export Excel Data to a Word Table with Formatting
The following are the steps to convert Excel data to a Word table maintaining formatting using Spire.Office for Java.
- Create a Workbook object and load a sample Excel file using Workbook.loadFromFile() method.
- Get a specific worksheet using Workbook.getWorksheets().get() method.
- Create a Document object, and add a section to it.
- Add a table using Section.addTable() method.
- Detect the merged cells in the worksheet and merge the corresponding cells of the Word tale using the custom method mergeCells().
- Get value of a specific Excel cell using CellRange.getValue() method and add it to a cell of the Word table using TableCell.addParagraph().appendText() method.
- Copy the font style and cell style from Excel to the Word table using the custom method copyStyle().
- Save the document to a Word file using Document.saveToFile() method.
- Java
import com.spire.doc.*;
import com.spire.doc.FileFormat;
import com.spire.doc.documents.HorizontalAlignment;
import com.spire.doc.documents.PageOrientation;
import com.spire.doc.documents.VerticalAlignment;
import com.spire.doc.fields.TextRange;
import com.spire.xls.*;
public class ExportExcelToWord {
public static void main(String[] args) {
//Load an Excel file
Workbook workbook = new Workbook();
workbook.loadFromFile("C:/Users/Administrator/Desktop/sample.xlsx");
//Get the first worksheet
Worksheet sheet = workbook.getWorksheets().get(0);
//Create a Word document
Document doc = new Document();
Section section = doc.addSection();
section.getPageSetup().setOrientation(PageOrientation.Landscape);
//Add a table
Table table = section.addTable(true);
table.resetCells(sheet.getLastRow(), sheet.getLastColumn());
//Merge cells
mergeCells(sheet, table);
for (int r = 1; r <= sheet.getLastRow(); r++) {
//Set row Height
table.getRows().get(r - 1).setHeight((float) sheet.getRowHeight(r));
for (int c = 1; c <= sheet.getLastColumn(); c++) {
CellRange xCell = sheet.getCellRange(r, c);
TableCell wCell = table.get(r - 1, c - 1);
//Get value of a specific Excel cell and add it to a cell of Word table
TextRange textRange = wCell.addParagraph().appendText(xCell.getValue());
//Copy font and cell style from Excel to Word
copyStyle(textRange, xCell, wCell);
}
}
//Save the document to a Word file
doc.saveToFile("ExportToWord.docx", FileFormat.Docx);
}
//Merge cells if any
private static void mergeCells(Worksheet sheet, Table table) {
if (sheet.hasMergedCells()) {
//Get merged cell ranges from Excel
CellRange[] ranges = sheet.getMergedCells();
for (int i = 0; i < ranges.length; i++) {
int startRow = ranges[i].getRow();
int startColumn = ranges[i].getColumn();
int rowCount = ranges[i].getRowCount();
int columnCount = ranges[i].getColumnCount();
//Merge corresponding cells in Word table
if (rowCount > 1 && columnCount > 1) {
for (int j = startRow; j <= startRow + rowCount ; j++) {
table.applyHorizontalMerge(j - 1, startColumn - 1, startColumn - 1 + columnCount - 1);
}
table.applyVerticalMerge(startColumn - 1, startRow - 1, startRow - 1 + rowCount -1);
}
if (rowCount > 1 && columnCount == 1 ) {
table.applyVerticalMerge(startColumn - 1, startRow - 1, startRow - 1 + rowCount -1);
}
if (columnCount > 1 && rowCount == 1 ) {
table.applyHorizontalMerge(startRow - 1, startColumn - 1, startColumn - 1 + columnCount-1);
}
}
}
}
//Copy cell style of Excel to Word table
private static void copyStyle(TextRange wTextRange, CellRange xCell, TableCell wCell) {
//Copy font style
wTextRange.getCharacterFormat().setTextColor(xCell.getStyle().getFont().getColor());
wTextRange.getCharacterFormat().setFontSize((float) xCell.getStyle().getFont().getSize());
wTextRange.getCharacterFormat().setFontName(xCell.getStyle().getFont().getFontName());
wTextRange.getCharacterFormat().setBold(xCell.getStyle().getFont().isBold());
wTextRange.getCharacterFormat().setItalic(xCell.getStyle().getFont().isItalic());
//Copy backcolor
wCell.getCellFormat().setBackColor(xCell.getStyle().getColor());
//Copy horizontal alignment
switch (xCell.getHorizontalAlignment()) {
case Left:
wTextRange.getOwnerParagraph().getFormat().setHorizontalAlignment(HorizontalAlignment.Left);
break;
case Center:
wTextRange.getOwnerParagraph().getFormat().setHorizontalAlignment(HorizontalAlignment.Center);
break;
case Right:
wTextRange.getOwnerParagraph().getFormat().setHorizontalAlignment(HorizontalAlignment.Right);
break;
}
//Copy vertical alignment
switch (xCell.getVerticalAlignment()) {
case Bottom:
wCell.getCellFormat().setVerticalAlignment(VerticalAlignment.Bottom);
break;
case Center:
wCell.getCellFormat().setVerticalAlignment(VerticalAlignment.Middle);
break;
case Top:
wCell.getCellFormat().setVerticalAlignment(VerticalAlignment.Top);
break;
}
}
}
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.
