Ghostscript vs MinerU

Ghostscript is a PostScript and PDF interpreter and rendering engine from Artifex, with conversion support for PDF, PostScript, PCL and XPS. It can convert among those formats, produce PDF/A output, and compress PDFs with adjustable settings. Its OCR device can turn printed or scanned material into searchable PDF text. Other image and print capabilities include raster and vector output, color management, overprint simulation, N-up imposition, screening and trapping.

Ghostscript runs as a standalone command-line application or can be integrated into an application as an SDK. The gsapi interface has Python, C# and Java bindings, with demos and sample applications. The maker lists uses including cloud document conversion, archiving, previews, e-invoicing, pre-press, printing and document management. It supports Windows, macOS, Unix and Unix-like systems, VMS and embedded systems. The AGPL license is free, with source code disclosure requirements and no support. Artifex says a commercial license is required for distribution in a closed-source product or SaaS deployment under its licensing guidance; commercial plans have no listed price. Conversion may not preserve extra metadata such as embedded files or document outlines.

MinerU 4.0 combines document parsing, a local document library, and tools for conversion, application integration, and agent reading. It accepts PDFs, images, office documents, ebooks, web formats, and other listed inputs, and can produce Markdown, HTML, LaTeX, DOCX, EPUB, PDF, structured content, and content lists. Four parsing tiers—Flash, Basic, Standard, and Advanced—serve different quality and compute needs. The library can discover files, cache parsing results, search content, continue by page or block, and preserve citation locators. Developers can use a Python SDK, V1 HTTP API, command-line tools, or a Gradio-based WebUI. MinerU supports the MCP protocol and agent frameworks, with exports to Dify and Notion. Documents are not automatically uploaded to the official service; remote parsing requires explicit configuration. Local WebUI and API server deployments are documented for Linux, macOS, and Windows. The open-source software is free under its project license; commercial-use limits apply above 100 million monthly active users or USD 20 million monthly revenue.