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The Crucial Role of Java-Based Viewing Integrations in FinTech Applications

FinTech applications have become indispensable to the financial services sector, enabling users to easily engage with financial offerings in a manner that suits them, while also boosting operational efficiency. The industry’s ongoing digital transformation continues to redefine FinTech functions, with developers tirelessly crafting new apps capable of handling tasks formerly dispersed across numerous systems and software.

Among the most crucial features of FinTech applications is the ability to view and share documents. Developers have a range of document lifecycle solutions at their disposal to circumvent the challenging process of building these features from the ground up. However, the financial sector presents distinct security and compatibility prerequisites when it comes to choosing partners for integration. To truly grasp these technical hurdles, it’s important to understand the significance of Java in the development of FinTech applications.

A (Brief) History of Java in the Financial Sector

Financial institutions pioneered the adoption of automated workflows. The advent of the first electronic communication network that facilitated the trading of financial products off the trading floor was seen as early as the 1960s. During the 1970s, computerized order flows saw greater acceptance, with most financial companies crafting their own proprietary systems. The digital revolution truly ignited in the 1980s and early 1990s with the launch of the Bloomberg terminal and the Financial Information eXhange (FIX) protocol. By the late 1990s, the Nasdaq enabled the execution of securities trades autonomously, without the need for manual interference, through the incorporation of Island ECN.

Java shook up the programming language world when it debuted in 1995, and its timing couldn’t have been better. The financial industry witnessed an extensive wave of mergers and acquisitions in the late 1990s and early 2000s, which resulted in several companies grappling with the integration of a multitude of applications and data. Java’s ability to support diverse platforms was an appealing solution to this challenge, and numerous financial applications were translated into Java. Sun Microsystems, which first introduced Java to the market, even adopted the slogan “Write once, run anywhere” to promote its flexibility. Java’s simplicity of use and significantly enhanced speed compared to legacy code on outdated platforms quickly made it the language of choice for developers.

In a few short years, Java ascended to become the leading programming language within the financial services industry. Its popularity surged again following the launch of OpenJDK, a free and open-source version of the language, in 2007. An Oracle report in 2011 estimated that over 80% of electronic trading applications and virtually all FIX engines were written in Java. Even close to three decades after its debut, Java continues to be the primary programming language employed by financial services, surpassing other open-source alternatives by a considerable margin.

Java’s Enduring Appeal for the Financial Industry

The enduring preference for Java among financial sector developers isn’t simply due to tradition or resistance to change. Java’s unique attributes are an exceptional fit for financial applications, spanning both long-established enterprise-level banking systems and pioneering FinTech solutions.


In the realm of financial services, security is the highest priority for developers. Applications related to banking and trading must have robust security provisions to guard financial data and personally identifiable information against unauthorized access. Java simplifies data access restriction and provides an array of memory safety features to diminish potential vulnerabilities, particularly those stemming from prevalent programming mistakes. Oracle consistently rolls out regular updates to fix recognized vulnerabilities and tackle the most recent cybersecurity threats.


Java, being a platform-independent language, allows applications to operate on virtually any device. This has always been a substantial benefit in the financial sector, but it has proven even more crucial in the era of cloud computing and mobile applications. Developers can employ the same code to roll out software in a virtual environment and render it accessible to end-users via their smartphones, computers, or other devices. The ability of Java virtual machines to support additional programming languages only adds to the language’s versatility.


Given the nearly three-decade-long consistent use and the backing of a robust development community, Java has established itself as one of the most dependable programming languages globally. Potential instabilities have long been addressed, and there is a wealth of developer tools and documentation at hand to ensure software is built on a solid foundation. This reliability is critically significant for banking and financial applications, which demand high performance levels coupled with fault tolerance.

The Value of Java-Based Document Viewing and Sharing

As FinTech developers continue to build novel applications aimed at simplifying life for clients and employees in the financial industry, they’re facing a growing expectation from users for superior document viewing and sharing capabilities. Users want to bypass the time-consuming and resource-heavy task of manually processing paper documents, and most organizations strive to eliminate the security hazards associated with using external applications for managing digital documents.

However, developers face significant challenges when attempting to build these complex document viewing capabilities from scratch. Although there are numerous integrations that can introduce document lifecycle features, most aren’t based in Java and need extra development work to embed them into existing FinTech solutions. Without the option to natively view, share, and edit documents within the Java application, users frequently resort to external programs, a practice that presents potential security issues and version discrepancy risks.

Facilitating Java-based Document Functionalities through PrizmDoc® for Java

Accusoft’s PrizmDoc® for Java, formerly VirtualViewer®, is a robust, Java-based HTML5 document viewing tool designed to assure optimal compatibility with FinTech applications without compromising functionality and security. By supporting an array of document types, such as PDF, TIFF, JPEG, AFP, PCL, and Microsoft Office, PrizmDoc® for Java creates a streamlined viewing experience that eliminates the need for external viewing solutions.

As an integration built on Java, PrizmDoc® for Java can operate on nearly any operating system and is simple to deploy. There’s no need to install software on the user’s desktop, enabling FinTech developers to deploy a scalable solution that fulfills their crucial security and business continuity needs within a single, high-velocity application. PrizmDoc® for Java’s server component swiftly renders and dispatches individual document pages for local viewing as required, allowing users to access, view, annotate, redact, and manipulate financial documents instantaneously. Since documents are rendered within the web-based viewer, users never have to download or transfer files, which could put sensitive data at risk.

Experience PrizmDoc® for Java’s features for yourself by signing up for a free trial!