Adding Image to PDF in Java Using Itext

In this tutorial we will be adding image to PDF in Java using itext. We will be adding images using 2 different scenarios:

1) Add an online image accessible through a URL
2) Add a local image on the file system
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Create Password Protected PDF Files in Java Using Itext

In this tutorial, we will extend our previous example where we created a PDF file and attempt to Create Password protected PDF files in Java using itext.

Interanally Itext uses bountycastle.org encryption API.
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Create Password Protected Excel Sheets Using Apache POI

In the last tutorial, we saw that there are two types of password protections offered in Excel. We also saw how we can password protect an Excel document so that it can’t be opened without providing a valid password. In this tutorial we will see the second type of password protection i.e. how to create password protected excel sheets using Apache POI.

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In this case the worksheet will be un-editable until it is unprotected with the password.
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Create Password Protected Excel Using Apache POI

In the previous tutorials we saw how to read and write Excel files using the Apache POI library. In this tutorial we will see how to create password protected excel using Apache POI.

There are 2 types of password protections offered in Excel:
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Write to XLSX file in Java Using Apache POI

In this tutorial, we will see how to Write to XLSX file in Java Using Apache POI.

Java source to Write to XLSX file in Java Using Apache POI :

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Read XLSX file in Java using Apache POI

In this tutorial we will try to read XLSX file in Java using Apache POI. Here is the Excel file we will be reading:

Read XLSX file in Java using Apache POI

Read XLSX file in Java using Apache POI

For this tutorial, make sure you download the latest version of Apache POI and place it on the classpath of your computer or eclipse project. Alternatively, you can download the eclipse project attached at the end of this page, it has the API already inside it.
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Apache POI : An Introduction

In one of our previous series of tutorials for handling excel files in Java, we saw in detail how Jexcel API works. We saw how to read excel files with different data types and also saw how to write to excel files. As we noted there, jexcelapi however has numerous limitations. Although it is a great light weight framework to perform basic excel operations through Java, one of the main limitations of jexcelapi is its inability to handle the newer version of the Microsoft Office Excel files (.xslx files). To overcome this limitation, we can use the Apache POI library.
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Eclipse Maven Plugin

In one of our previous tutorials we saw how Maven Eclipse Plugin can be used to convert a Maven project into an eclipse project. Eclipse similarly has a Maven plugin. In this tutorial, we will have a detailed look at the Eclipse Maven Plugin.
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Maven Tomcat Plugin

In this tutorial we will see how to configure and use the Maven Tomcat Plugin for Tomcat 7. We can readily use the Maven Tomcat Plugin to perform common tasks like deploy, undeploy, start, stop etc.
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Maven Eclipse Plugin

Although Maven does a great job in creating projects, handling dependencies etc, but we would still most probably be using an IDE for editing the code. Eclipse is one of the most popular IDEs for Java projects (although it can handle a wide variety of projects other than Java as well). In this tutorial we will have a look at the Maven eclipse plugin and see how we can use it to convert a Maven project into an Eclipse project.
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