Comparison
paper-qa vs opendataloader-pdf
Verdict
Pick paper-qa if paperQA2 version 5 is a retrieval-augmented generation (RAG) system optimized for extracting information from scientific documents, enhancing user queries with citations; pick opendataloader-pdf if opendataloader-pdf is an open-source PDF parsing library in Java that transforms PDFs into AI-ready data by supporting OCR recognition, bounding box generation, and table extraction.
Markdown twin · paper-qa alternatives · opendataloader-pdf alternatives
GraphCanon updated 2d
vs
Trust & integrity
| Signal | paper-qa | opendataloader-pdf |
|---|---|---|
| Maintenance | Very active (5d since push) As of 2d · github_public_v1 | Very active (0d since push) As of 2d · github_public_v1 |
| Provenance | Not a fork · Organization account As of 2d · github_public_v1 | Not a fork · Organization account As of 2d · github_public_v1 |
| OSV dependency advisories | No lockfile (source not queried) As of 1mo · osv@v1 | No lockfile (source not queried) As of 1mo · osv@v1 |
| deps.dev advisories | Not queried deps.dev@v1 | Not queried deps.dev@v1 |
| OpenSSF Scorecard | Not queried openssf-scorecard@v1 | Not queried openssf-scorecard@v1 |
Tagline
- paper-qa
- High accuracy RAG for answering questions from scientific documents with citations
- opendataloader-pdf
- PDF Parser for AI-ready data
Stars
- paper-qa
- 9.0k
- opendataloader-pdf
- 29k
Forks
- paper-qa
- 907
- opendataloader-pdf
- 2.7k
Open issues
- paper-qa
- 141
- opendataloader-pdf
- 82
Language
- paper-qa
- Python
- opendataloader-pdf
- Java
Adopt for
- paper-qa
- PaperQA2 version 5 is a retrieval-augmented generation (RAG) system optimized for extracting information from scientific documents, enhancing user queries with citations.
- opendataloader-pdf
- Opendataloader-pdf is an open-source PDF parsing library in Java that transforms PDFs into AI-ready data by supporting OCR recognition, bounding box generation, and table extraction.
Persona
- paper-qa
- -
- opendataloader-pdf
- -
Runtime
- paper-qa
- -
- opendataloader-pdf
- -
License
- paper-qa
- 'Apache-2.0' - Permissive free software license that allows for both non-commercial use and commercial exploitation of the package.
- opendataloader-pdf
- Opendataloader-pdf uses Apache License 2.0, making it a fully permissive license that allows easy integration into commercial projects without copyleft obligations. Prior to version 2.0, the tool was
Last pushed
- paper-qa
- Aug 12, 2026
- opendataloader-pdf
- Aug 18, 2026
Categories
- paper-qa
- Data & Retrieval, Model Training
- opendataloader-pdf
- Data & Retrieval, Model Training
Trust and health
Days since push
- paper-qa
- 5d
- opendataloader-pdf
- 0d
Open issues (now)
- paper-qa
- 141
- opendataloader-pdf
- 82
Stars delta
- paper-qa
- +154 (30d)
- opendataloader-pdf
- +1.1k (30d)
Open issues delta
- paper-qa
- 0 (30d)
- opendataloader-pdf
- +8 (30d)
Full report
- paper-qa
- Trust report
- opendataloader-pdf
- Trust report
Choose paper-qa if…
- paper-qa is primarily Python; opendataloader-pdf is Java.
- Requirements: Min 4 GB RAM.
- Tags unique to paper-qa: rag, science, search.
- Your project specifically requires processing and querying scientific documents, as PaperQA2 offers specialized capabilities tuned for this domain.
When NOT to use paper-qa
- If your use case does not involve scientific document processing, another RAG system better suited to your specific type of documents (e.g., legal, medical) might be more fitting.
- In scenarios where real-time performance is critical and extensive indexing or access to external APIs for large-scale paper handling becomes a bottleneck.
Choose opendataloader-pdf if…
- opendataloader-pdf is primarily Java; paper-qa is Python.
- Tags unique to opendataloader-pdf: a11y, accessibility, bounding-box, document-parsing.
- - **You require precise control:** Opendataloader-pdf offers detailed features such as bounding box generation and table extraction, which can be crucial when you need precise data positioning from un
When NOT to use opendataloader-pdf
- - **Non-Java Environment:** Since the tool is primarily developed in Java, it might not be suitable if your primary development environment or application is built around another language.
Explore
Sources
Every stat on this page traces to a dated GitHub sync, license file, enrichment field, or trust scan.
- GitHub stars (Future-House/paper-qa) · observed Aug 18, 2026
- GitHub forks (Future-House/paper-qa) · observed Aug 18, 2026
- Last push (Future-House/paper-qa) · observed Aug 12, 2026
- License file (Apache-2.0) · observed Aug 18, 2026
- Decision facts (enrichment) · observed Jul 12, 2026
- Trust scan (lockfile / OSV) · observed Jul 11, 2026
- GitHub stars (opendataloader-project/opendataloader-pdf) · observed Aug 18, 2026
- GitHub forks (opendataloader-project/opendataloader-pdf) · observed Aug 18, 2026
- Last push (opendataloader-project/opendataloader-pdf) · observed Aug 18, 2026
- License file (Apache-2.0) · observed Aug 18, 2026
- Decision facts (enrichment) · observed Jul 11, 2026
- Trust scan (lockfile / OSV) · observed Jul 11, 2026
GitHub stars on cards: paper-qa 9.0k · opendataloader-pdf 29k (synced Aug 18, 2026).
Common questions
- What is the difference between paper-qa and opendataloader-pdf?
- paper-qa: High accuracy RAG for answering questions from scientific documents with citations. opendataloader-pdf: PDF Parser for AI-ready data. See the comparison table for live GitHub stats and shared categories.
- When should I choose paper-qa over opendataloader-pdf?
- Choose paper-qa over opendataloader-pdf when paper-qa is primarily Python; opendataloader-pdf is Java; Requirements: Min 4 GB RAM; Tags unique to paper-qa: rag, science, search; Your project specifically requires processing and querying scientific documents, as PaperQA2 offers specialized capabilities tuned for this domain.
- When should I choose opendataloader-pdf over paper-qa?
- Choose opendataloader-pdf over paper-qa when opendataloader-pdf is primarily Java; paper-qa is Python; Tags unique to opendataloader-pdf: a11y, accessibility, bounding-box, document-parsing; - **You require precise control:** Opendataloader-pdf offers detailed features such as bounding box generation and table extraction, which can be crucial when you need precise data positioning from un.
- When should I avoid paper-qa?
- If your use case does not involve scientific document processing, another RAG system better suited to your specific type of documents (e.g., legal, medical) might be more fitting. In scenarios where real-time performance is critical and extensive indexing or access to external APIs for large-scale paper handling becomes a bottleneck.
- When should I avoid opendataloader-pdf?
- - **Non-Java Environment:** Since the tool is primarily developed in Java, it might not be suitable if your primary development environment or application is built around another language.
- Is paper-qa or opendataloader-pdf more popular on GitHub?
- opendataloader-pdf has more GitHub stars (28,528 vs 9,048). Stars measure visibility, not whether either tool fits your constraints.
- Are paper-qa and opendataloader-pdf open source?
- Yes - both are open-source projects on GitHub (paper-qa: Apache-2.0, opendataloader-pdf: Apache-2.0).
- Where can I find alternatives to paper-qa or opendataloader-pdf?
- GraphCanon lists graph-backed alternatives at paper-qa alternatives and opendataloader-pdf alternatives (paper-qa markdown twin, opendataloader-pdf markdown twin), ranked by typed relationship edges rather than popularity votes.
- Is there a machine-readable version of this comparison?
- Yes. The markdown twin at this comparison mirrors this page for agents and LLM crawlers, with the same stats table and FAQ answers.
- Which is better maintained, paper-qa or opendataloader-pdf?
- paper-qa: Very active. opendataloader-pdf: Very active. Compare maintenance labels, days since push, and release cadence in the trust section below - stars alone do not measure maintenance.
- Where are the full trust reports for paper-qa and opendataloader-pdf?
- GraphCanon publishes per-repo trust reports with dated maintenance, provenance, and scan summaries: paper-qa trust report; opendataloader-pdf trust report.