PDF Tools
Join, merge, split, compress, rotate, watermark, protect, and organize PDFs in one place.
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PADI
PDF Analysis & Document Intelligence
Free desktop tools to edit, convert, OCR, and understand PDFs — offline-first, on Windows and Linux. No subscription.
Product
Inside PADI
A calm dashboard for documents, OCR, AI status, and your personal knowledge library — free for everyday use.
v1.1.0 — Documents · AI · Knowledge Base · Settings
Capabilities
Everything you need to work with documents
Core PDF tools are free to use and run on your machine. AI is optional when you want deeper insight.
PDF Editor
Edit text, annotate, stamp, sign, and manage pages offline — including OCR for scans.
Convert & OCR
Convert PDF to editable Word (.docx), images, text, Markdown, CSV, or Excel — with a live file preview. Read scans and build searchable PDFs.
AI & Research
Summarize, chat with PDFs, explore research gaps, and grow a personal knowledge library.
Platforms
Built for your desktop
Download free for Windows or Linux — install like a normal app, or run a portable AppImage.
Windows 10 / 11
Setup installer with Program Files install, Start Menu shortcuts, and uninstall from Settings → Apps.
Get Setup.exeLinux x86_64
Mark the AppImage executable and launch — no system Python required.
chmod +x PADI-1.1.0-x86_64.AppImage && ./PADI-1.1.0-x86_64.AppImage
Get AppImage
Hardware
System requirements
Minimum specs to run PADI, and recommended specs for smooth PDF tools, OCR, convert, and preview.
Minimum
Enough to open and use core PDF tools
- OSWindows 10/11 64-bit or Linux x86_64
- CPUDual-core x86_64, 2.0 GHz
- RAM4 GB
- Storage~500 MB free
- Display1280 × 720
Recommended
Best for OCR, large PDFs, convert, and preview
- OSWindows 10/11 64-bit or Linux x86_64
- CPUQuad-core x86_64, 2.5 GHz+
- RAM8 GB
- Storage1 GB+ free · SSD preferred
- Display1366 × 768 or higher
Optional local AI (Ollama): plan for 8–16 GB RAM depending on model size. Cloud AI only needs internet and an API key. Optional helpers: Tesseract for OCR languages, LibreOffice for Office → PDF.
Workflow
From file to finished work
A clear path for everyday document tasks — free, local, and yours to keep.
Open a document
Drop a PDF or pick a file. Preview pages and choose the module you need.
Edit or transform
Compress, convert, OCR, annotate, or ask AI for a summary when connected.
Export locally
Results land in your exports folder. Updates arrive via in-app release checks.
v1.1.0
Start with PADI today — free
Make managing your PDF documents easier. Free to use, offline when you need it, no paywall.