Minimal PDF and Markdown reading
Open PDFs and Markdown files in a standalone desktop app without the clutter of heavier PDF suites.
Free, local-first desktop reader
MarkPDF
An open-source, minimal PDF and Markdown reader with local-first annotation, OCR, visual signing, forms, image-to-PDF conversion, and AI-powered semantic search.
Built as a standalone Electron app for people who want document tools without paywalls or cloud-first workflows.
Built for local document work
More than a basic PDF viewer.
MarkPDF brings reader, editor, converter, and AI-search workflows into one local desktop surface.
Local semantic search
Index document text locally with ONNX embedding models and search related passages without sending PDF text to an AI provider.
AI provider and CLI-agent ready
Detect local CLI agents and connect OpenRouter, Ollama, LM Studio, Anthropic, or OpenAI-compatible endpoints.
OCR and image-to-PDF conversion
Use OCR fallback for scanned pages and convert groups of images into PDFs from the desktop app.
Annotations, forms, and page editing
Add text overlays, highlights, comments, reorder pages, fill forms, and save standard PDF annotations.
Visual signing
Draw, type, or upload a signature and place it on the page. Certificate-backed digital signatures are not included yet.