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KNOWIT PRO
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Engineering & Architecture

Comprehensive Document Intelligence Engine

Explore the deep capabilities that power Knowit PDF Pro for legal, financial, and enterprise document workflows.

01

Direct On-Canvas Text Editing & Replacement

Rather than treating PDF pages as flat images, our engine extracts the underlying content stream syntax. Click directly onto text lines to replace words, update legal names, or modify dates while matching original font metrics, kerning, and sizing.

  • Continuous content stream tokenization
  • Global search & replace across multi-page documents
  • Non-destructive multi-level Undo/Redo stack
// In-Memory Stream Modification
POST /api/edit/{doc_id}/replace-text
target: "Agreement dated Oct 12, 2025"
replacement: "Agreement dated Nov 03, 2026"
Result: 200 OK • Stream rewritten in 12ms
// True Physical Redaction
Purging vector paths inside bbox: [72, 140, 320, 160]
Metadata Sanitization: PURGED
Coordinate Stream: PURGED
Audit Status: Irreversible redaction confirmed
02

True Vector Sanitization & Redaction

Drawing a visual black box over sensitive PII or bank account numbers leaves the underlying text extractable. Knowit executes true physical redaction by permanently deleting the character vectors and glyph coordinates from the PDF operator stream.

  • Court & compliance-approved redaction standard
  • Automatic metadata and hidden annotation stripping
03

Bi-Directional Word (.docx) Conversion

Export formatted PDF agreements into clean Microsoft Word (.docx) documents with tables, fonts, headers, and images fully preserved. Conversely, drop any Word document directly into Knowit to compile it into a crisp PDF.

  • Preserves complex tables and bordered grids
  • Native OpenXML packaging without third-party cloud leaks
// Native OpenXML Engine
GET /api/convert/{doc_id}/docx
Layout Analysis: Multi-column Table detected
Export: executive_summary.docx (Streamed in RAM)
Download Blob: 1.4 MB in 420ms
// 3Tr Invisible Layer Injection
High-DPI Invoice Image (300 DPI)
Glyph Extraction: 1,840 characters recognized
Render Mode: 3 Tr (Text Invisible & Selectable)
Document is now 100% full-text searchable
04

3Tr High-Accuracy Searchable OCR

Scanned physical contracts and image receipts are unusable in automated workflows. Our OCR engine synthesizes an invisible 3Tr text layer aligned precisely beneath every word in the scanned image, enabling full text selection, copying, and search.