iText to PDF Migration - Java Spring Boot code migration

Role

Migrate a collection of Java-based operational reports that currently use iText so they instead use an open-source PDF library (Apache PDFBox or equivalent) within a Java Spring Boot codebase. Maintain the existing Vibe coding style and ensure the migrated reports produce PDFs that match the previous outputs.

Key Responsibilities

• Replace all iText dependencies with Apache PDFBox (or another open-source PDF library) across the provided reports.
• Preserve layout, calculations, branding, and output fidelity for each report.
• Implement and verify a runtime-generated dynamic table of contents for the reports.
• Ensure data filtering options passed as parameters are applied and reflected in the generated PDFs.
• Provide clean, well-documented source code and remove iText build artifacts and dependencies.
• Deliver a small set of sample PDFs demonstrating the required features and a short checklist of passing unit tests.

Requirements

• Strong Java and Spring Boot experience (codebase will be Java-based).
• Experience migrating or replacing PDF libraries (iText → Apache PDFBox or equivalent).
• Ability to reproduce existing PDF layouts exactly (or improve them) and validate via unit tests.
• Produce well-documented, maintainable code and build artifacts free of iText.
• Use one of the leading Vibe coding tools (e.g., Cursor, Claude code) and keep the existing Vibe coding style intact.

Deliverables

• Source code refactored to remove all iText dependencies and use Apache PDFBox or an equivalent open-source library.
• Unit tests or a provided checklist of tests; all tests must pass.
• A small set of sample PDFs demonstrating: (a) runtime dynamic table of contents and (b) parameter-driven data filtering.
• Build files and instructions to compile each report without errors.
• Inline and external documentation explaining changes and usage.

Acceptance Criteria

• Each migrated report compiles and runs without errors.
• Provided tests pass.
• Generated PDFs look identical to (or better than) the originals and demonstrate the required features.

What You’ll Receive

• Current iText source code for the reports.
• Sample data sets.
• A short checklist of unit tests to verify feature parity.

Logistics

• Work location: Remote
• Tools: Candidate should be prepared to use Vibe coding tools such as Cursor or Claude code during the work.