This report synthesises findings from 13 peer-reviewed papers addressing the following research question: How do different PDF preprocessing techniques (e.g., anonymization, content extraction methods) affect LiveCodeBench performance for Llama-3.1-8B in GDPR-compliant pipelines, and what trade-offs. Blockchains or distributed ledgers are an emerging technology that has drawn considerable interest from energy supply firms, startups, technology developers, financial institutions, national governments and the academic community. Numerous sources coming from these backgrounds. 5 claims were extracted from source literature; 5 were independently verified against retrieved documents. An automated multi-reviewer quality assessment produced a score of 8.3/10. This report is a machine-generated literature synthesis and does not constitute original research.Research goal: How do different PDF preprocessing techniques (e.g., anonymization, content extraction methods) affect LiveCodeBench performance for Llama-3.1-8B in GDPR-compliant pipelines, and what trade-offs exist between privacy and accuracy?Autonomous literature synthesis. Automated review score: 8.3/10. Full text and citation available at Assignee Research.