Worked on backend stability for the langflow-ai/langflow repository, focusing on resource management and file handling in Python. Addressed a critical issue in PDF processing workflows by implementing a bug fix that ensures the PdfReader object is properly closed after use. This change prevents memory leaks and reduces the risk of resource exhaustion in long-running processes, directly improving the reliability of PDF-related operations. No new user-facing features were released during this period, as the primary focus was on maintaining robust backend infrastructure. Demonstrated attention to detail in resource cleanup and contributed to the overall stability of the codebase.