Document technology, OCR, and data automation
ChuyenFile Product Team — RBTtech
The engineering team that builds, tests, and documents ChuyenFile PDF, Office, OCR, and document AI tools.
How we create content
Every guide is based on a real ChuyenFile workflow and states supported formats, limitations, and verification points. Quality claims are published only with a documented method or benchmark.
Articles by the team
Guides
AI PDF to Word: preserve editable text, tables, and layout
A practical workflow for converting native or scanned PDFs into editable Word documents while preserving text, tables, and page structure.
Document AI
Extract PDF invoices, scanned tables, and documents to Excel with AI
Turn tables in PDFs, invoice photos, and scanned trade documents into structured Excel data for review, filtering, and reconciliation.
Artificial intelligence
Chat with PDF using AI: summaries, answers, and page citations
Ask questions about contracts, reports, and long PDFs, summarize key points, and verify each answer with page-level citations.
ChuyenFile
ChuyenFile: 36 document tools for everyday work
Explore RBTtech's ChuyenFile ecosystem for conversion, organization, security, OCR, and document AI in one platform.
Security
PDF security explained: passwords, unlocking, redaction, and watermarks
Understand four different PDF security actions and choose the right ChuyenFile tool for passwords, sensitive data, and ownership marks.
Security
Visible PDF signatures vs PKI digital signatures: what is the difference?
Learn the difference between placing a signature image and signing with a P12/PFX certificate, plus how PDF integrity verification works.
Conversion
Convert PDF, Word, Excel, and PowerPoint into the right format
Choose DOCX, XLSX, PPTX, or PDF based on editing, calculation, presentation, and sharing needs.
Images
Convert PDF to images and images to PDF: DPI, color, and quality
Choose DPI, JPG or PNG, order multiple images, and create clear PDFs without unnecessary file size.
PDF organization
Organize PDFs professionally: merge, split, rotate, crop, and number pages
Build a polished PDF packet from multiple sources with merging, splitting, rotation, resizing, and page numbering tools.
Legal records
Legal PDF records: comparison, Bates numbering, flattening, and PDF/A
Control revisions, number records, lock form appearance, and prepare PDFs for long-term legal archiving.
PDF optimization
Corrupted or oversized PDF: should you repair or compress it?
Diagnose unreadable PDFs, damaged structures, and oversized files, then choose Repair or Compress appropriately.
AI translation
Translate multilingual PDFs while preserving a usable layout
Prepare Vietnamese, English, or Chinese PDFs for translation, terminology review, and scanned-document OCR.
Conversion
PDF to TXT/Markdown and text or HTML to PDF: when should you use each?
Extract lightweight content for search, AI, and reuse, or generate consistent PDFs from UTF-8, Markdown, and static HTML.
PDF editing
Add text, apply watermarks, and edit PDFs for the right purpose
Distinguish PDF annotations, visible ownership marks, and watermark removal on content you are authorized to edit.
iPhone
Manage PDFs on iPhone: scan, combine, compress, sign, and ask questions
Use an iPhone browser to turn photos into PDF, reduce file size, add a visible signature, and review documents with AI.
MacBook
Process PDFs on MacBook with browser tools and AI
Combine macOS Preview with ChuyenFile for conversion, OCR, structured extraction, and PDF Q&A without installing multiple apps.
Artificial intelligence
What is document AI? From OCR to extraction and reading assistants
Understand the layers of document AI, practical use cases, and how to evaluate output before automation.
Vietnamese OCR
OCR Vietnamese PDFs into editable Word without losing critical details
A practical OCR workflow for Vietnamese scans, diacritics, administrative forms, tables, and human verification.
Finance operations
Convert a bank statement PDF to Excel for reconciliation
Extract transaction tables, normalize dates and amounts, and reconcile totals against the original statement before analysis.