Version 2.0.2 • Open-Source Local-First Engine

Translate scientific papers with absolute geometric fidelity. Without ever breaking an equation, a column, or a figure.

RockTranslate deconstructs academic PDFs (Elsevier, Springer, Nature, arXiv) with pixel-level precision through a spatial DOM matrix, reinjecting translations without altering the original typography or layout. Operates 100% offline via local models (Ollama) or with your favorite cloud AI engines.

100% Local & Offline (Ollama)
Zero Geometric Drift (Matrix DOM)
Born from Academic Research (MIT)
Gemini 3.8 Flash, GPT-5.6 Terra & Claude 5 Sonnet
workspace://tankeu_et_al_2026_workspace.html
Structural Fidelity: 99.8%
Animated demonstration of RockTranslate workspace
42 Pages Processed
18 / 18 Tables Aligned
62 Equations Intact
0.00% Overlap

Bridging the global academic inequality gap in scientific research.

The vast majority of high-impact research publications are published exclusively in English. For doctoral researchers, professors, and universities in developing countries — particularly across Sub-Saharan Africa and Cameroon — accessing, translating, and assimilating complex academic literature represents an immense hurdle.

Traditional automated translation workflows often struggle to maintain intricate multi-column layouts, displacing mathematical formulas, table boundaries, and figure alignments.

"Access to scientific knowledge should be universal and seamless. Researchers everywhere deserve tools that preserve the exact layout, equations, and typography of peer-reviewed literature without compromising formatting or accessibility. RockTranslate was built by students to empower global education without borders."

— Winter Tony (PerfectWin), Creator of RockTranslate
Standard Document Translators

Layout Disruption Challenges

  • Text expansion can cause unintentional overlap across figures and captions.
  • Mathematical formulas and LaTeX matrices frequently lose their structural alignment.
  • Usage quotas and recurring fees can constrain underfunded academic departments.
  • Cloud-only pipelines may not suit sensitive or pre-publication research data.
The RockTranslate Paradigm

Absolute Vectorial Fidelity

  • Spatial DOM matrix decomposition: precise preservation of columns and margins.
  • Intelligent isolation of equations, indices, tables, and vector curves.
  • 100% Free, open source (MIT license) with no page or volume caps.
  • 100% Offline execution via Ollama: your research never leaves your machine.

Real Demonstrations: Before & After

Compare original English scientific publications with their reinjected translations. Inspect the precise alignment of double columns, captions, tables, and typography.

English to French — Elsevier Earth-Sciences Multi-Column

Full stratigraphic diagram retention, precise geological nomenclature, and auto-scaled double columns without paragraph overlapping.

English → French Elsevier Double-Column +22% Word Expansion Managed
English to French Elsevier Comparison
Click to inspect in high-resolution zoom

Adopted by Researchers & Universities Worldwide

Discover how doctoral candidates, professors, and laboratory researchers leverage RockTranslate daily for their critical literature reviews.

★★★★★

In Cameroon, our graduate students used to waste countless hours rewriting entire papers by hand because online translators ruined stratigraphic cross-sections and geological tables. RockTranslate translated 42 pages of an Elsevier sedimentary formation study without shifting a single margin. An invaluable asset for our faculty.

📄 Elsevier Journal of African Earth Sciences
Dr. Jean-Pierre Mvondo
Dr. Jean-Pierre Mvondo
Senior Lecturer in Structural Geology University of Yaoundé I 🇨🇲
★★★★★

Translating deep learning papers into Japanese is notoriously difficult due to vertical expansion and double-byte CJK glyph rendering. RockTranslate's proportional scaling algorithm rendered the equations in 'Attention Is All You Need' and vector figures with absolute perfection.

📄 arXiv:1706.03762 ("Attention Is All You Need")
Dr. Yuki Tanaka
Dr. Yuki Tanaka
Senior NLP Research Scientist RIKEN Center for AI Project, Tokyo 🇯🇵
★★★★★

In molecular pharmacology, shifting a single cell in a dosage table can invalidate an entire experimental trial. Every commercial tool broke our multi-column tables. With RockTranslate, Springer Nature studies are translated into Spanish while strictly honoring the original typographic grid.

📄 Springer Nature Therapeutics
Dr. Sofía Valenzuela
Dr. Sofía Valenzuela
Postdoctoral Fellow in Biomedicine IBYME / CONICET, Buenos Aires 🇦🇷
★★★★★

German translations typically expand text length by 25 to 30%. On dense Elsevier papers in materials physics, this invariably leads to catastrophic text overlaps. RockTranslate's dynamic micro-kerning and bounding box optimization solves this with surgical precision.

📄 Physical Review Letters & Elsevier Mechanics
Prof. Dr. Heinrich Becker
Prof. Dr. Heinrich Becker
Professor of Computational Physics Technical University of Munich (TUM) 🇩🇪
★★★★★

In university hospital environments in Nigeria, internet connectivity can be intermittent and research budgets cannot afford $30 per month per user. Being able to run RockTranslate completely offline with Ollama on our laptops without an external connection has transformed our clinical reviews.

📄 The Lancet Global Health Reports
Dr. Amara Okafor
Dr. Amara Okafor
Head of Epidemiological Research University of Nigeria, Nsukka 🇳🇬
★★★★★

I integrated the RockTranslate Python API into our automated arXiv preprint ingestion pipeline. It batch-processes papers, computes SHA-256 hashes to cache previously analyzed pages, and generates vector-printable PDFs with flawless clarity. Outstanding engineering.

📄 IEEE Transactions on Pattern Analysis (PAMI)
Dr. Elena Rostova
Dr. Elena Rostova
Postdoctoral Researcher in Computer Vision Mila & McGill University 🇨🇦

Engineered for Complex Scientific Layouts

A hybrid architecture combining matrix vector decomposition, dynamic typographic adaptation, and a universal AI inference gateway.

Spatial Vectorial DOM Matrix Decomposition

Unlike traditional text extractors that flatten multi-column documents into continuous unformatted streams, RockTranslate harnesses pdf2htmlEX's geometric engine. Every text segment, equation, and figure is mapped with its exact Cartesian matrix coordinates matrix(a, b, c, d, tx, ty).

<div class="t m0 x15 y48 ff1 fs2 fc0 sc0 ws0" style="transform: matrix(1, 0, 0, 1, 142.3, 89.1);">...</div>

100% Offline & Private (Ollama)

Your unpublished thesis manuscripts, pending patent applications, and confidential lab findings never leave your local workstation. Run Llama 4, Mistral, or Qwen directly on your local CPU or GPU.

Dynamic Typographic Kerning & Scaling

When a translated paragraph expands by +25%, RockTranslate dynamically recalibrates horizontal aspect ratios, font sizing, and tracking to ensure no word ever spills over neighboring borders or charts.

Universal AI Model Inference Gateway

Choose your engine based on cost and reasoning requirements: Google Gemini 3.8 Flash / Pro, OpenAI GPT-5.6 Terra, Anthropic Claude 5 Sonnet / Haiku 5, DeepSeek-V4, or any OpenAI-compatible server. Easily switchable with 2 clicks.

SUPPORTED_PROVIDERS = ['gemini', 'anthropic', 'openai', 'deepseek', 'ollama', 'custom_endpoint']

Built for Developers & Research Laboratories

Use the intuitive desktop GUI for daily interactive reviews, or embed the translation engine into your automated document ingestion pipelines via the CLI and native Python API.

  • >_
    Dedicated Command-Line Interface (CLI): Batch-translate entire directories of academic papers in the background with a single command.
  • Py
    5-Line Programmatic Python API: Import RockTranslator directly, configure your API keys or local Ollama host, and control your workflows programmatically.
  • ⚡
    Lazy Architecture & SHA-256 Caching: Only requested pages are converted. Re-opening papers executes instantly from local disk cache.
$ pip install rocktranslate
Installing beautifulsoup4, litellm, lxml...
Successfully installed rocktranslate-2.0.2
$ rocktranslate paper.pdf --target-lang French --model gemini/gemini-3.8-flash
[SUCCESS] Pixel-perfect PDF created: "paper_fr.pdf"

Everything You Need to Know

Clear answers for researchers and laboratories regarding document integrity, data security, and open-source licensing.

Through pdf2htmlEX spatial analysis, each text element is bound to its original geometric bounding box. When translations expand (such as in French or German, where word volume increases by 20–30%), our algorithm computes a proportional micro-adjustment on font size and CSS matrix transform: transform: scaleX(...). Text seamlessly conforms to its allocated spatial slot without colliding with figures or neighboring columns.
Yes, 100%. When operating in local mode with Ollama, the entire processing pipeline (geometric extraction, textual analysis, translation, and vector PDF compilation) runs entirely on your physical machine. Zero bytes, zero text, and zero telemetry leave your computer.
During HTML DOM instrumentation, matrix equations, Greek mathematical symbols, sub/superscripts, and vector graphics are isolated and tagged. They are excluded from linguistic translation to ensure they remain mathematically and spatially intact in their original positions.
RockTranslate was built by students and researchers who experienced the financial barriers of commercial translation tools firsthand. The project is licensed under the permissive MIT license to democratize scientific knowledge and empower researchers in underfunded universities worldwide.
The graphical desktop application is available as a standalone executable installer for Windows 10 and 11 (64-bit). The Python package and CLI run across Windows, Linux (via the official pdf2htmlEX AppImage), and macOS.

Ready to translate scientific papers without breaking their layout?

Download the standalone Windows desktop app or install our lightweight Python package into your research environment.