Auto‑Straighten Your Scanned PDFs with AI

Upload Scanned PDF

Drop your scanned PDF or select from your file system. The system extracts each page as an image, builds a RAG index for fast semantic queries, and prepares the AI deskewer.

Drag and drop your file here or browse to select

Upload a PDF. Our AI analyzes each page, finds the optimal rotation angle, and returns a perfectly aligned document.

pload a scanned PDF and let our AI detect skew angles across every page with sub-degree accuracy. Using OpenCV-powered analysis, Documentize.AI calculates the optimal rotation correction for each page and returns a perfectly aligned document — while fully preserving any existing OCR and searchable text layers. Unlike manual rotation tools, our deskew engine processes entire documents automatically, making it ideal for digitization workflows, legal document processing, and archive management where precise page alignment is essential.

How Deskew Works

1. Upload Your Scanned PDF

Select a PDF file from your computer or cloud storage.

2. AI Extracts Page Images & Analyzes Skew

OpenCV converts each page to a bitmap, computes the dominant text line orientation, and determines the exact rotation angle.

3. RAG Index for Semantic Queries (Optional)

Metadata such as page numbers, detected angles, and confidence scores are vectorized, enabling instant answers like “Which pages were rotated more than 5°?”.

4. Apply Corrections & Re‑assemble PDF

Pages are rotated to 0°, re‑encoded, and the original OCR/text layer is preserved. Download the corrected PDF.

FAQs

Standard PDF files (including encrypted PDFs with user password). Images (JPEG, PNG) can be uploaded as single‑page PDFs.
OpenCV computes rotation with sub‑degree precision (±0.1°). Most scans are corrected to within 0.2° of perfect alignment.
Yes. The tool rotates the visual layer while preserving the original text layer, so the output remains searchable.
Files are processed in memory and deleted immediately after the session. No data is retained or used to train models.
Free tier supports PDFs up to 100 MB (≈500 pages). Higher tiers allow up to 1 GB and batch uploads.

Unlock the Power of Document Management

AI‑Level Precision

OpenCV‑based angle detection with sub‑degree accuracy, far better than manual tools.

Zero‑Loss OCR Preservation

Rotates visual layer only, keeping existing text layers searchable and selectable.

Batch & API Access

Process multiple PDFs at once or integrate via REST API for automated workflows.

Flexible Plans for Every Workflow

Free Plan

Free
  • Up to 100 MB per PDF, unlimited chats, automatic skew correction, OCR preservation.