Hbot

Free Offline Document Scanner for Windows

Hbot is a 100% free, 100% offline desktop app for scanning, enhancing, and managing documents. Like CamScanner, but nothing ever leaves your computer.

Version 1.1.0 — see what's new

100% free. 100% offline. Nothing leaves your computer.

Features

Scan & Capture

  • Smart Crop — auto-detects edges and flattens perspective
  • Webcam auto-capture — holds steady, snaps, re-arms when you turn the page
  • Book mode — splits two-page spreads at the gutter

Enhance & Edit

  • Magic Color, Remove Shadows, Black & White, Grayscale, Denoise
  • Brightness, contrast, rotate, drag-to-adjust corners
  • Annotate in the main window — pen, marker, highlighter, eraser
  • Undo / Redo per page (Ctrl+Z / Ctrl+Y)
  • Blur region, tiled watermark

Sign & Compress

  • Draw your signature or stamp a transparent PNG, then drag to place
  • Compress PDF or image down to a maximum size you pick
  • Keeps text selectable when possible — rasterizes only as a last resort

Convert & Manage

  • Images → PDF, PDF → Images, PDF → Word, Word → PDF
  • Handles large PDFs (15–20 MB+) with adaptive rendering
  • PowerPoint-style page list — drag to reorder, cut / copy / paste / delete
  • Merge, split, AES-256 password protection
  • Automatic update check — one-click download & install

Setup (Windows)

Install Python 3.10+ from python.org and tick “Add to PATH”.

Optional: for Word ↔ PDF conversion, have Microsoft Word or LibreOffice installed — Hbot uses whichever is available.

pip install -r requirements.txt

python -m hbot.app

Screenshots

Hbot homepage with click-to-import hint and CONVERT panel
Annotating a page in the main window
Compress PDF dialog with maximum size in MB
Loading a large PDF with progress bar
About dialog with Check for Updates