Remove numbered labels from error and change markers

Improve spell checking to reduce false positives

Add ChatGPT-recommended barcode debug function

Fix barcode detection bugs and improve robustness

Implement PDF-based barcode/QR code detection

Fix coordinate mapping for text-based spell checking

Fix Box constructor parameter names in text-based spell checking

Implement text-based spell checking using PDF text extraction

Improve OCR performance: add image preprocessing, higher DPI, better Tesseract config

Fix spell checking issues: remove duplicates, auto-detect languages, handle hyphenated words, optimize allowlist

Add multi-page PDF support: process up to 5 pages and combine vertically

Implement improved spell checking system with regex, domain allowlist, and confidence filtering

Fix Unicode encoding error: replace Δ with Delta

Add PyMuPDF fallback and comprehensive poppler packages for PDF processing

Fix poppler PDF processing: add comprehensive packages and multiple path attempts

Fix syntax error: correct indentation of except block

Fix indentation error in barcode handling else block

Fix indentation error in find_misspell_boxes function

Fix PDF processing: add poppler dev package and better error handling

Fix scikit-image import: footprint_rectangle -> rectangle

Overwrite pdf_comparator.py with new Gradio comparison tool

Update pdf_comparator.py: latest changes

Increase PDF resolution: DPI from 300 to 600, scaling factors improved for better OCR and barcode detection