# olmocr | Ai2 | Knowledge Base | Instagit Toolkit for linearizing PDFs for LLM datasets/training GitHub Stars: 18.6k Repository: https://github.com/allenai/olmocr --- ## Articles ### [How to Report Bugs or Suggest Features for Olmocr: A Complete Guide](/allenai/olmocr/where-to-report-bugs-or-suggest-features-for-olmocr) Report bugs or suggest features for olmocr. File structured GitHub Issues in the allenai/olmocr repository using provided templates. Get your issues resolved faster. - Tags: how-to-guide - Published: 2026-07-08 ### [Olmocr License: Apache 2.0 Terms and Usage Rights Explained](/allenai/olmocr/what-are-the-licensing-details-for-olmocr) Understand the Olmocr License Apache 2.0 Use this powerful OCR tool for commercial projects. Learn about modification, redistribution, and usage rights for allenai/olmocr. - Tags: getting-started - Published: 2026-07-08 ### [How to Optimize olmOCR for Speed: 7 Configuration Changes That Double Throughput](/allenai/olmocr/how-to-optimize-olmocr-for-speed) Learn how to optimize olmOCR for speed with 7 configuration changes. Double throughput by reducing resolution, increasing concurrency, using 4-bit quantization, and switching to local storage. - Tags: performance - Published: 2026-07-08 ### [Example Usage of olmOCR: CLI and Python API Quick‑Start Guide](/allenai/olmocr/where-can-i-find-example-usage-of-olmocr) Discover olmOCR example usage with our quick-start guide. Explore CLI and Python API examples for local GPU, remote inference, Docker, and async PDF processing. - Tags: getting-started - Published: 2026-07-08 ### [How to Troubleshoot Common olmOCR Errors: A Complete Diagnostic Guide](/allenai/olmocr/how-to-troubleshoot-common-olmocr-errors) Troubleshoot common olmOCR errors related to invalid data, network issues, or worker locks. Learn to diagnose and resolve these problems with this complete guide. - Tags: how-to-guide - Published: 2026-07-08 ### [What Input Formats Does olmocr Support? Complete Guide to Document Processing](/allenai/olmocr/what-input-formats-does-olmocr-support) Learn the extensive input formats olmocr supports for document processing, including PDFs, images, and compressed files. Get the complete guide here. - Tags: how-to-guide - Published: 2026-07-08 ### [How to Run the olmOCR OCR Process: Complete Guide to PDF-to-Markdown Conversion](/allenai/olmocr/how-to-run-the-olmocr-ocr-process) Learn how to run the olmOCR OCR process and convert PDFs to Markdown and JSONL. Follow this guide for seamless document conversion using the allenai/olmOCR-2-7B-1025-FP8 model. - Tags: how-to-guide - Published: 2026-07-08 ### [How to Install olmocr: Complete Setup Guide for Local and Remote Inference](/allenai/olmocr/how-do-i-install-olmocr) Install olmocr for local or remote inference with pip. Choose lightweight, GPU, Beaker, or benchmark versions for a custom setup. Get started now. - Tags: getting-started - Published: 2026-07-08 ### [Purpose of the olmocr Repository: Technical Architecture and PDF-to-Markdown Pipeline](/allenai/olmocr/what-is-the-purpose-of-the-olmocr-repository) Discover the olmocr repository, an open-source toolkit that converts PDFs and images to structured Markdown text. Learn about its technical architecture and efficient PDF-to-Markdown pipeline. - Tags: architecture - Published: 2026-07-08 ### [System Requirements for olmOCR: Hardware, Software, and Installation Guide](/allenai/olmocr/what-are-the-system-requirements-for-olmocr) Discover olmOCR system requirements for hardware, software, and installation. Get optimal performance with Python 3.11+, Linux dependencies, and NVIDIA GPU or Docker. - Tags: getting-started - Published: 2026-07-07 ### [How to Uninstall olmocr: Complete Removal Guide for the Python Package and Dependencies](/allenai/olmocr/how-to-uninstall-olmocr) Easily uninstall olmocr and its dependencies to reclaim disk space. Learn the complete removal guide for the Python package and associated extras. - Tags: how-to-guide - Published: 2026-07-07 ### [How to Run olmOCR from the Command Line: A Complete Guide to the allenai/olmocr CLI](/allenai/olmocr/how-to-run-olmocr-from-the-command-line) Learn to run olmOCR from the command line with this guide. Process PDFs locally or remotely using the allenai/olmocr CLI for efficient OCR. - Tags: how-to-guide - Published: 2026-07-07 ### [Supported Languages for olmocr: HTML-Based Language Detection and Normalization](/allenai/olmocr/what-are-the-supported-languages-for-olmocr) Discover supported languages for OLMOCR. Learn how it detects and normalizes languages using HTML lang attributes, defaulting to English when needed. - Tags: api-reference - Published: 2026-07-07 ### [Where to Find Documentation for olmOCR: Complete Guide to Installation, API, and Usage](/allenai/olmocr/where-to-find-documentation-for-olmocr) Find comprehensive olmOCR documentation covering installation API and usage. Explore the README and docs source directory for complete guidance on architecture setup and command line operations. - Tags: api-reference - Published: 2026-07-07 ### [How to Report Bugs in olmOCR: A Complete Guide to Issue Templates](/allenai/olmocr/how-to-report-bugs-in-olmocr) Learn how to report bugs in olmOCR effectively. Use the bug report template to submit issues with reproducible examples and environment details for faster resolution. - Tags: how-to-guide - Published: 2026-07-07 ### [License for OLM‑OCR: Apache 2.0 Terms and Usage Guide](/allenai/olmocr/what-is-the-license-for-olmocr) Understand the Apache 2.0 license for allenai/olmocr. Learn terms for commercial use, modification, and distribution of this open-source OCR tool. - Tags: getting-started - Published: 2026-07-07 ### [Limitations of olmOCR: GPU Requirements, Costs, and Document Processing Constraints](/allenai/olmocr/what-are-the-limitations-of-olmocr) Discover olmOCR limitations: high VRAM GPU needs, $200 per million pages inference costs, and challenges with multilingual text, math, and distributed processing. Learn more now. - Tags: deep-dive - Published: 2026-07-07 ### [How to Fine-Tune olmOCR Models: A Complete Technical Guide](/allenai/olmocr/how-to-fine-tune-olmocr-models) Learn to fine-tune olmOCR models with this technical guide. Prepare data, configure LoRA, train, and merge checkpoints for vLLM compatibility using the allenai olmocr repository. Get started now. - Tags: how-to-guide - Published: 2026-07-07 ### [olmOCR Performance Benchmarks: How the 82.4% Overall Score Is Calculated](/allenai/olmocr/what-are-the-performance-benchmarks-for-olmocr) Discover olmOCR performance benchmarks and how its 82.4% overall score is calculated. Learn how olmOCR outperforms Marker and PaddleOCR through rigorous testing. - Tags: performance - Published: 2026-07-07 ### [OlmOCR Configuration Options: Complete Guide to Model, Training, and Pipeline Settings](/allenai/olmocr/what-are-the-configuration-options-for-olmocr) Explore OlmOCR configuration options for model, training, and pipeline settings. This guide details the dataclass config system for efficient OCR setup and customization. - Tags: how-to-guide - Published: 2026-07-07 ### [Core Functionalities of OlmOCR: Converting PDFs and Images to Structured Markdown with Vision-Language Models](/allenai/olmocr/what-are-the-core-functionalities-of-olmocr) OlmOCR converts PDFs and images to Markdown using a Vision-Language Model. Discover its core functionalities: high-throughput processing, S3 integration, auto-rotation, and fallback extraction. - Tags: overview - Published: 2026-07-07 ### [How Does OlmOCR Process OCR Tasks: An Eight-Stage Technical Pipeline](/allenai/olmocr/how-does-olmocr-process-ocr-tasks) Explore OlmOCR's eight-stage pipeline for processing OCR tasks. Discover how it converts PDFs to structured documents using LLMs, rotation correction, and retry logic. - Tags: deep-dive - Published: 2026-07-07 ### [How to Install olmOCR: Complete Setup Guide for Local and Remote Inference](/allenai/olmocr/how-to-install-olmocr) Install olmOCR easily with pip for fast remote or local GPU inference. Follow our guide for Python 3.11 and Poppler setup. - Tags: getting-started - Published: 2026-07-07 ### [What Are the Dependencies for olmOCR? A Complete Guide to Core and Optional Packages](/allenai/olmocr/what-are-the-dependencies-for-olmocr) Discover the core and optional dependencies for olmOCR. Learn which Python packages you need for PDF processing, GPU inference, and distributed training with this comprehensive guide. - Tags: how-to-guide - Published: 2026-07-07 ### [How to Set Up olmOCR Locally: Complete Installation Guide](/allenai/olmocr/how-to-set-up-olmocr-locally) Install olmOCR locally with our comprehensive guide. Set up Python, install dependencies, and deploy the VLLM pipeline or use remote inference for efficient OCR. - Tags: getting-started - Published: 2026-07-07 ### [What is allenai/olmocr? A VLM-Powered PDF OCR Toolkit Explained](/allenai/olmocr/what-is-allenai-olmocr-repository) Discover allenai/olmocr an open-source toolkit that transforms PDFs into clean structured Markdown or text using VLMs Preserves tables equations and layouts outputting Dolma-compatible JSON-L - Tags: getting-started - Published: 2026-07-07 ### [Structure of the allenai/olmocr Codebase: Module Breakdown and Architecture Guide](/allenai/olmocr/what-is-the-structure-of-the-code-in-allenai-olmocr) Explore the allenai/olmocr codebase structure. Understand its modular Python design, pipeline orchestration, work queue management, and specialized modules for rendering, filtering, training, and benchmarking. - Tags: architecture - Published: 2026-07-07 ### [How to Set Up a Development Environment for allenai/olmocr: Complete Guide](/allenai/olmocr/how-to-set-up-a-development-environment-for-allenai-olmocr) Set up your allenai/olmocr development environment easily. Install system deps, create a conda env, and pip install extras like gpu or dev versions. Get started fast. - Tags: how-to-guide - Published: 2026-07-07 ### [AllenAI olmOCR Pre-trained Models: Available Checkpoints and Usage Guide](/allenai/olmocr/are-there-any-pre-trained-models-available-for-allenai-olmocr) Explore allenai/olmocr pre-trained models for OCR. Access FP8-quantized and FP16 checkpoints fine-tuned for efficient OCR tasks on Hugging Face. Get started today. - Tags: usage-guide - Published: 2026-07-07 ### [AllenAI Olmocr Licensing: Apache 2.0 Terms and Compliance Guide](/allenai/olmocr/what-are-the-licensing-details-for-allenai-olmocr) Understand the Apache 2.0 license for AllenAI Olmocr. Discover key compliance details and usage rights for this open-source OCR project. - Tags: licensing-guide - Published: 2026-07-07 ### [Performance Benchmarks for AllenAI/OlmOCR: Document-Level Evaluation Results](/allenai/olmocr/what-are-the-performance-benchmarks-for-allenai-olmocr) Discover AllenAI/OlmOCR performance benchmarks with our v0.4.0 evaluation results. See how the latest release achieved an 82.4% score across 7000 test cases. - Tags: performance - Published: 2026-07-07 ### [Main Architecture of allenai/olmocr: Async PDF Processing with vLLM](/allenai/olmocr/what-is-the-main-architecture-of-allenai-olmocr) Discover the main architecture of allenai/olmocr a parallel async pipeline for PDF to JSONL conversion using vLLM for efficient LLM inference and page rendering. - Tags: architecture - Published: 2026-07-07 ### [What Programming Languages Are Used in AllenAI/olmocr?](/allenai/olmocr/what-programming-languages-are-used-in-allenai-olmocr) Discover the programming languages powering allenai/olmocr. Primarily Python, with Bash for training and Docker for environments to optimize OCR workflows. - Tags: getting-started - Published: 2026-07-07 ### [Dependencies for AllenAI olmocr: Core and Optional Packages Explained](/allenai/olmocr/what-are-the-dependencies-for-allenai-olmocr) Learn about the core and optional dependencies for AllenAI olmocr including pypdf pypdfium2 and boto3 Discover GPU inference benchmarking and training extras in pyproject.toml - Tags: getting-started - Published: 2026-07-07 ### [How the Worker Lock Mechanism Prevents Duplicate PDF Processing in OLMocr](/allenai/olmocr/how-worker-lock-mechanism-prevents-duplicate-pdf-processing) Discover how OLMocr's worker lock mechanism prevents duplicate PDF processing. Learn how it uses file-based locks and timestamps to ensure single worker access for efficient and reliable OCR. - Tags: internals - Published: 2026-07-06 ### [OlmOCR Temperature Selection Algorithm: How Dynamic Retry Temperatures Improve OCR Output Quality](/allenai/olmocr/temperature-selection-algorithm-for-improving-output-quality) Discover how OlmOCR's dynamic temperature selection algorithm boosts OCR output quality. Learn how progressive scaling from 0.1 to 1.0 minimizes errors for superior results. - Tags: deep-dive - Published: 2026-07-06 ### [How PDF to Image Rendering Works with Target Dimensions in OLMocr](/allenai/olmocr/how-pdf-to-image-rendering-works-with-target-dimensions) Discover how OLMocr renders PDFs to images, scaling pages to target dimensions while preserving aspect ratio using dynamic DPI. Learn more about PDF to image rendering. - Tags: how-to-guide - Published: 2026-07-06 ### [Anchor Text Mechanism in OLMoCR: Encoding PDF Layouts for Language Models](/allenai/olmocr/anchor-text-mechanism-and-its-use-in-prompts) Discover the anchor text mechanism in OLMoCR, which injects position-annotated PDF text into LLM prompts, providing spatial grounding without image data. - Tags: deep-dive - Published: 2026-07-06 ### [How Does olmOCR Compare Against Other OCR Systems in Benchmarks?](/allenai/olmocr/how-olmocr-compares-against-other-ocr-systems-in-benchmarks) Discover how olmOCR stacks up in benchmarks against top OCR systems. See its impressive 82.4% overall accuracy and competitive performance. - Tags: benchmark-comparison - Published: 2026-07-06 ### [How the Beaker Cluster Integration Enables Distributed Processing in olmOCR](/allenai/olmocr/how-beaker-cluster-integration-works-for-distributed-processing) Discover how Beaker cluster integration in olmOCR enables distributed PDF processing across hundreds of GPU nodes with a single command. Scale your OCR tasks efficiently. - Tags: deep-dive - Published: 2026-07-06 ### [How olmOCR Handles Mathematical Equations and LaTeX Rendering](/allenai/olmocr/how-olmocr-handles-mathematical-equations-and-latex-rendering) Discover how olmOCR handles math equations and LaTeX. Learn about its pipeline for preserving, rendering with KaTeX, and validating output using advanced algorithms. - Tags: how-to-guide - Published: 2026-07-06 ### [Synthetic Data Generation Using HTML Templates in OLM OCR: A Complete Technical Guide](/allenai/olmocr/synthetic-data-generation-process-using-html-templates) Learn to generate synthetic data with HTML templates in OLM OCR. This guide details the process of creating training data from PDFs with Claude-generated templates for improved OCR accuracy. - Tags: how-to-guide - Published: 2026-07-06 ### [How Data-Parallel Inference Works in olmOCR for Processing Multiple PDFs](/allenai/olmocr/how-data-parallel-inference-works-for-processing-multiple-pdfs) Discover how olmOCR uses data-parallel inference to process multiple PDFs. Learn how local vLLM servers distribute page requests across GPUs for faster results. - Tags: how-to-guide - Published: 2026-07-06 ### [How olmOCR Manages GPU Memory with Large Documents and vLLM](/allenai/olmocr/how-olmocr-manages-gpu-memory-with-large-documents-and-vllm) Discover how olmOCR efficiently manages GPU memory with large documents and vLLM. Learn how it processes PDFs page by page, capping requests to prevent VRAM overload. - Tags: performance - Published: 2026-07-06 ### [Guided Decoding in olmOCR: Enforcing Strict YAML Output Validation for LLM Inference](/allenai/olmocr/what-is-guided-decoding-and-how-it-improves-yaml-output-validation) Explore guided decoding in olmOCR and its powerful regex constraint for strict YAML output validation during LLM inference. Get perfectly formatted data every time. - Tags: deep-dive - Published: 2026-07-06 ### [Complete PDF Filtering Pipeline in OlmOCR: Language, Form, and Spam Detection](/allenai/olmocr/complete-pdf-filtering-pipeline-language-form-spam-detection) Explore the OlmOCR PDF filtering pipeline for efficient language, form, and spam detection to streamline your document processing. Optimize your workflow today. - Tags: how-to-guide - Published: 2026-07-06 ### [How Front Matter Parsing Extracts Metadata from PDF Documents in Olmocr](/allenai/olmocr/how-front-matter-parsing-extracts-metadata-from-pdfs) Learn how Olmocr extracts PDF metadata using front matter parsing to read YAML headers, validate data with typed dataclasses, and streamline training pipelines. - Tags: how-to-guide - Published: 2026-07-06 ### [Dolma Document Format Specification: How OlmOCR Structures PDF Output](/allenai/olmocr/dolma-document-format-specification-for-output) Explore the Dolma document format specification used by OlmOCR to structure PDF output. Learn how Dolma JSON stores OCR text and metadata for documents. - Tags: api-reference - Published: 2026-07-06 ### [How the GRPO RL Trainer Executes Unit Test Rewards in OlmOCR](/allenai/olmocr/how-grpo-rl-trainer-works-for-unit-test-rewards) Discover how the GRPO RL trainer in OlmOCR executes unit test rewards. Learn how pass rates drive policy updates for vision-language models. - Tags: internals - Published: 2026-07-06 ### [Structure and Categories of the olmOCR-Bench Benchmark Suite: A Complete Guide](/allenai/olmocr/structure-and-categories-of-olmocr-bench-benchmark-suite) Explore the olmOCR-Bench benchmark suite's structure and categories. Discover seven document types and five test classes for evaluating OCR systems. Learn more at allenai/olmocr. - Tags: deep-dive - Published: 2026-07-06 ### [How LoRA Fine-Tuning Works in the olmOCR Training Pipeline: A Complete Technical Guide](/allenai/olmocr/how-lora-fine-tuning-works-in-olmocr-training-pipeline) Discover how LoRA fine-tuning accelerates olmOCR training by efficiently updating frozen vision-language models with adapter matrices. Learn the technical details. - Tags: deep-dive - Published: 2026-07-06 ### [Understanding the Temperature Retry Mechanism in OlmOCR: Handling Model Failures](/allenai/olmocr/temperature-retry-mechanism-and-model-failures) Learn how OlmOCR's temperature retry mechanism handles model failures by increasing LLM sampling temperature across eight attempts, improving generation and recovery. - Tags: internals - Published: 2026-07-05 ### [How olmOCR Detects and Filters SEO Spam and Form-Based PDFs: A Technical Deep Dive](/allenai/olmocr/how-olmocr-detects-and-filters-seo-spam-and-form-based-pdfs) Discover how olmOCR uses its PdfFilter class to detect and filter SEO spam and form-based PDFs, ensuring quality text extraction. Learn more about this technical deep dive into the allenai/olmocr repository. - Tags: deep-dive - Published: 2026-07-05 ### [Architecture of the S3-Based Distributed Work Queue in OLMocr](/allenai/olmocr/architecture-of-s3-based-distributed-work-queue-system) Explore the S3-based distributed work queue architecture in allenai/olmocr. Discover a fault-tolerant, serverless system for parallel processing using only Amazon S3 object storage. - Tags: architecture - Published: 2026-07-05 ### [How olmOCR Handles Multi-Column PDF Layouts and Reading Order Detection](/allenai/olmocr/how-olmocr-handles-multi-column-pdf-layouts-and-reading-order-detection) Discover how olmOCR tackles multi-column PDFs using a vision-first pipeline for accurate reading order detection and semantic HTML generation. Learn more today. - Tags: how-to-guide - Published: 2026-07-05 ### [How olmOCR Detects and Filters SEO Spam PDFs](/allenai/olmocr/how-does-olmocr-detect-and-filter-seo-spam-pdfs) Discover how olmOCR detects and filters SEO spam PDFs using PdfFilter for interactive forms, English content, and keyword density checks. Improve document quality effortlessly. - Tags: how-to-guide - Published: 2026-07-02 ### [Understanding the Filtering Capabilities of olmOCR: A Technical Deep Dive](/allenai/olmocr/what-are-the-filtering-capabilities-of-olmocr) Explore olmOCR's advanced filtering system for high-quality PDF and document data. Learn about PDF pre-filtering, text rules, rotation checks, and language scoring for robust training data. - Tags: deep-dive - Published: 2026-07-02 ### [How to Generate Synthetic Training Data with OlmOCR: A Complete Pipeline Guide](/allenai/olmocr/how-to-generate-synthetic-training-data-with-olmocr) Learn to generate synthetic OCR training data using OlmOCR. This guide details the complete pipeline from PDF to JSONL with automated verification. - Tags: how-to-guide - Published: 2026-07-02 ### [Training Configuration Options in OlmOCR: A Complete Guide to Model, Dataset, and Hyperparameter Settings](/allenai/olmocr/what-are-the-training-configuration-options-in-olmocr) Explore OlmOCR training configuration options. Master model, dataset, and hyperparameter settings with this guide to achieve precise control over your vision-language models. - Tags: tutorial - Published: 2026-07-02 ### [How to Perform GRPO Reinforcement Training with olmOCR: A Complete Guide](/allenai/olmocr/how-to-perform-grpo-reinforcement-training-with-olmocr) Learn GRPO reinforcement training with olmOCR. Fine-tune vision-language models using GRPOTrainer and olmocr_bench_reward for unit-test pass rate rewards. Get the complete guide. - Tags: how-to-guide - Published: 2026-07-02 ### [What Models Are Supported for SFT Training in olmOCR?](/allenai/olmocr/what-models-are-supported-for-sft-training-in-olmocr) Explore olmOCR's support for SFT training with Qwen3-VL, Qwen2.5-VL, and Qwen2-VL models. Discover automatic HuggingFace class selection for seamless integration. - Tags: api-reference - Published: 2026-07-02 ### [How to Fine-Tune olmOCR Models with SFT: A Complete Guide](/allenai/olmocr/how-to-fine-tune-olmocr-models-with-sft) Learn to fine-tune olmOCR models using SFT. This guide covers data prep, YAML config setup, and training execution with optional LoRA for efficient parameter training. - Tags: tutorial - Published: 2026-07-02 ### [Cost of Using OlmOCR for Large-Scale PDF Conversion: Pricing Breakdown and Scaling Strategies](/allenai/olmocr/what-is-the-cost-of-using-olmocr-for-large-scale-pdf-conversion) Discover the cost of using OlmOCR for large-scale PDF conversion. Get a detailed pricing breakdown, explore scaling strategies, and find out how to convert millions of pages affordably. - Tags: pricing-breakdown - Published: 2026-07-02 ### [How to Remove Headers and Footers Using olmOCR: Detection and Enforcement Guide](/allenai/olmocr/how-to-remove-headers-and-footers-using-olmocr) Learn to remove headers and footers with olmOCR. Discover how Gemini LLM detection and TextPresenceTest assertions ensure clean OCR extraction. Get started today. - Tags: how-to-guide - Published: 2026-07-02 ### [How Does OLM OCR Handle Tables in Documents? A Deep Dive into Table Parsing](/allenai/olmocr/how-does-olmocr-handle-tables-in-documents) Discover how OLM OCR processes tables by translating markup into a graph structure, preserving cell coordinates, header links, and adjacencies for accurate data extraction. - Tags: deep-dive - Published: 2026-07-02 ### [Does olmOCR Support Handwriting OCR? A Technical Deep Dive](/allenai/olmocr/does-olmocr-support-handwriting-ocr) Discover if olmOCR handles handwriting OCR. Learn how specific vision-language model prompts extract handwritten text into the natural_text field for accurate results. - Tags: deep-dive - Published: 2026-07-02 ### [How to Convert Images to Text with olmOCR: A Complete Guide](/allenai/olmocr/how-to-convert-images-to-text-with-olmocr) Easily convert images to text using olmOCR. This guide shows how to process PNG or JPEG files via the CLI for structured text extraction with VLLM. - Tags: how-to-guide - Published: 2026-07-02 ### [How to Convert Multiple PDFs with olmOCR: Batch Processing Guide](/allenai/olmocr/how-to-convert-multiple-pdfs-with-olmocr) Convert multiple PDFs efficiently using olmOCR. Learn how to leverage its batch processing capabilities with the WorkQueue class for streamlined OCR tasks. - Tags: how-to-guide - Published: 2026-07-02 ### [How to Convert a Single PDF to Markdown Using olmOCR: CLI and Python Guide](/allenai/olmocr/how-to-convert-a-single-pdf-to-markdown-using-olmocr) Easily convert a single PDF to Markdown with olmOCR. Use the CLI or Python code to process PDFs into structured Markdown files quickly and efficiently. - Tags: how-to-guide - Published: 2026-07-02 ### [Image Rendering Options for olmOCR: PNG, WebP, and Playwright Methods](/allenai/olmocr/what-are-the-image-rendering-options-for-olmocr) Explore olmOCR image rendering options including PNG, WebP, and Playwright. Convert PDFs and HTML to images efficiently with allenai/olmocr. - Tags: how-to-guide - Published: 2026-07-02 ### [How to Configure vLLM Arguments in olmOCR: A Complete Guide](/allenai/olmocr/how-to-configure-vllm-arguments-in-olmocr) Configure vLLM arguments in olmOCR to optimize performance. Learn how to pass flags directly to the olmocr.pipeline command for local or external server integration. - Tags: how-to-guide - Published: 2026-07-02 ### [Core Pipeline Arguments for olmOCR: Complete Configuration Guide](/allenai/olmocr/what-are-the-core-pipeline-arguments-for-olmocr) Explore the core pipeline arguments for olmOCR in this complete configuration guide. Learn about workspace paths, model selection, worker concurrency, VLLM, and Beaker cluster options. - Tags: configuration-guide - Published: 2026-07-02 ### [How to Specify a Different Model for olmOCR: 3 Methods Explained](/allenai/olmocr/how-to-specify-a-different-model-for-olmocr) Learn how to specify a different model for olmOCR with three easy methods. Use CLI flags, remote server identifiers, or programmatic control for flexible OCR. - Tags: how-to-guide - Published: 2026-07-02 ### [Default Model Used by olmOCR: Qwen2.5-VL-7B-Instruct Configuration](/allenai/olmocr/what-is-the-default-model-used-by-olmocr) Discover the default model for olmOCR. Learn about the Qwen2.5-VL-7B-Instruct configuration and its role in this powerful OCR tool from allenai. Get insights into the powerful vision-language model powering olmOCR. - Tags: feature-explanation - Published: 2026-07-02 ### [How to Run olmOCR Using Docker: A Complete Guide to PDF OCR Containerization](/allenai/olmocr/how-to-run-olmocr-using-docker) Run olmOCR with Docker to OCR PDFs. Pull the image, mount your files, and use GPUs for fast PDF to markdown conversion without local setup. - Tags: how-to-guide - Published: 2026-07-02 ### [How to Perform Multi-Node Cluster Processing with olmOCR: Distributed PDF OCR Guide](/allenai/olmocr/how-to-perform-multi-node-cluster-processing-with-olmocr) Learn how to perform multi-node cluster processing with olmOCR. This guide details distributed PDF OCR using a scalable S3 work queue for efficient coordination. - Tags: how-to-guide - Published: 2026-07-02 ### [How to Use olmOCR with a Remote Inference Server: A Complete Configuration Guide](/allenai/olmocr/how-to-use-olmocr-with-a-remote-inference-server) Scale olmOCR to millions of PDFs by delegating inference to an OpenAI compatible server. Learn how to configure olmOCR with remote inference using the --server flag. - Tags: how-to-guide - Published: 2026-07-02 ### [System Dependencies for olmOCR on Ubuntu/Debian: Complete Installation Guide](/allenai/olmocr/what-are-the-system-dependencies-for-olmocr-on-ubuntu-debian) Install olmOCR on Ubuntu/Debian by adding essential system dependencies like poppler-utils and Microsoft Core Fonts. Get text extraction working with our easy guide. - Tags: how-to-guide - Published: 2026-07-02 ### [How to Install olmOCR for Local GPU Inference: Complete Setup Guide](/allenai/olmocr/how-to-install-olmocr-for-local-gpu-inference) Install olmOCR for local GPU inference with this setup guide. Learn to create a Python environment, add system dependencies, and run pip install olmocr with cu128 for efficient Vision-Language Model deployment. - Tags: how-to-guide - Published: 2026-07-02