StackToPDF
Professional Document Scanning & OCR Made Simple
Transform your scanner or smartphone into a professional document digitization system. Scan documents, extract text with OCR, and export to PDF—all with just a few clicks.
100% Offline • Windows, macOS, Linux
100% offline. Zero bloat. Built for speed.
Core Features (FREE)
Universal Document Scanning
- ✓Scan any document: letters, receipts, invoices, forms, notes
- ✓Support for USB scanners, network scanners (eSCL), and image imports
- ✓Automatic scanner detection (TWAIN, WIA, eSCL protocols)
- ✓Batch scanning for processing multiple documents
Powerful OCR
- ✓Extract text from scanned images automatically
- ✓Industry-standard Tesseract OCR engine
- ✓Works completely offline—no internet required
- ✓Export extracted text to various formats
Image Enhancement
- ✓Automatic image optimization
- ✓Brightness, contrast, and sharpness adjustments
- ✓Orientation detection and correction
- ✓Professional-quality output
Fast & Lightweight
- ✓3-4 second processing time
- ✓No heavy AI model downloads
- ✓Works instantly—no setup required
- ✓Cross-platform: Windows, Linux, macOS
Receipt Intelligence Pro
Transform StackToPDF into a professional receipt management system
Pro features coming soon • One-time purchase • Lifetime access
5-Layer Intelligence System
📊 95-99% Accurate Extraction
Vendor, date, total, tax, items—all extracted automatically
🏪 Vendor Recognition
Walmart, Target, Starbucks, Amazon, and more
✅ Smart Validation
Catches math errors and inconsistencies
🧠 Self-Learning
Improves accuracy with every correction
📑 Structured Export
CSV/Excel with organized data fields
🎯 Template Matching
Optimized for common receipt formats
Perfect For:
Why StackToPDF?
🔒Privacy First
- • 100% offline processing
- • Your data never leaves your device
- • No cloud uploads, no API calls
- • Perfect for sensitive documents
💾No Bloat
- • No heavy AI model downloads
- • Small download size
- • Fast installation
- • Minimal system resources
🎯Easy to Use
- • Simple, intuitive interface
- • Minimal settings—just scan and go
- • Batch processing for efficiency
- • Works out of the box
🛠️Professional Quality
- • Industry-standard Tesseract OCR
- • High-performance Sharp image processing
- • Reliable, battle-tested components
- • PDF creation with pdf-lib
Use Cases
📚 Students & Educators
Scan notes, textbooks, and study materials. Convert handwritten notes to searchable PDFs.
🏢 Home & Small Offices
Digitize paperwork, contracts, invoices. Create searchable document archives.
💼 Business Expense Tracking (Pro)
Extract receipt data automatically. Export to Excel for accounting. Track vendor spending patterns.
📊 Accounting Firms (Pro)
Process client receipts in bulk. Validate totals automatically. Export structured data for QuickBooks/Xero.
📝 General Document Archival
Scan old documents, letters, forms. Create searchable PDFs. Reduce physical paper storage.
Be the First to Know
Get notified when StackToPDF launches. Free core features, with optional Pro upgrade.
Notify Me at LaunchWindows, macOS & Linux • Free core features • No account required