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Redact RTF Formats in Java

Native and high performance Microsoft Word RTF document sensitive redaction information using Java APIs, without the use of any software like Microsoft or Adobe PDF.

How to Redact RTF File Using Java

In order to redact Microsoft Word RTF file, we’ll use

Aspose.Words for Java

API which is a feature-rich, powerful and easy to use redaction API for Java platform. You can download its latest version directly from

Maven

and install it within your Maven-based project by adding the following configurations to the pom.xml.

Repository


<repository>
<id>AsposeJavaAPI</id>
<name>Aspose Java API</name>
<url>https://repository.aspose.com/repo/</url>
</repository>

Dependency

<dependency>
<groupId>com.aspose</groupId>
<artifactId>aspose-words</artifactId>
<version>version of aspose-words API</version>
<classifier>jdk17</classifier>
</dependency>

Steps to Redact RTF Files in Java

A basic document search and replace text in contents, comments or metadata can be done with just few lines of code. Redact sensitive information through search and replace text in contents, comments or metadata in Word documents.

  • Instantiate Document class..
  • Create FindReplaceOptions object.
  • Set Pattern
  • Use Replace method with relevant options.
  • Save document.

System Requirements

Before integrating the code, make sure that you have the following prerequisites.

  • Microsoft Windows or a compatible OS with Java Runtime Environment for JSP/JSF Application and Desktop Applications.
  • Get latest version of Aspose.Words for Java directly from Maven .
 

Redact RTF Files - Java

Document rtf = new Document();
DocumentBuilder builder = new DocumentBuilder(rtf);
builder.writeln("sad mad bad");
		
if(rtf.getText().trim() == "sad mad bad"){
	System.out.println("Strings are equal!");
}

// Replaces all occurrences of the words "sad" or "mad" to "bad".
FindReplaceOptions options = new FindReplaceOptions();
rtf.getRange().replace(Pattern.compile("[s|m]ad"), "bad", options);

// Save the RTF document.
rtf.save(dataDir + "output.rtf");
 
  • Java Words API can be used to load, view and convert Microsoft Word and OpenDocument Formats like DOC, DOCX, ODT to PDF, XPS, HTML and various other formats. You can also create new documents from scratch and save them in the supported formats. It is a standalone API that is suitable for server side and backend systems where high performance is required. It does not depend on any software like Microsoft or OpenOffice. ‎

    Online RTF Redaction Live Demos

    RTF What is RTF File Format

    Introduced and documented by Microsoft, the Rich Text Format (RTF) represents a method of encoding formatted text and graphics for use within applications. The format facilitates cross-platform document exchange with other Microsoft Products, thus serving the purpose of interoperability. This capability makes it a standard of data transfer between word processing software and, hence, contents can be transferred from one operating system to another without losing document formatting. The file format specifications are available by Microsoft for public download and can be referred to from developer's perspective.

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    Other Supported Redaction Documents

    Using Java, one can easily redact different formats including.

    DOC (Microsoft Word Binary Format)
    DOCX (Office 2007+ Words Document)
    DOT (Microsoft Word Template Files)
    DOTX (Microsoft Word Template File)
    HTML (Hyper Text Markup Language)
    MD (Markdown Language)
    MHTML (Web Page Archive Format)
    ODT (OpenDocument Text File Format)
    OTT (OpenDocument Standard Format)
    TXT (Text Document)
    XHTML (XML Text Based Markup)