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Thai PDF OCR — extract Thai text from scanned documents

Upload a scanned Thai PDF or image-based document and extract the text using AI-powered OCR. No manual retyping required.

Extract Thai text View all tools

Thai-language OCR

Handles Thai script with its unique vowel marks and tone markers using Typhoon AI.

AI-assisted correction

Runs a proofreading pass to fix common OCR errors in Thai text automatically.

Searchable PDF output

Optionally creates a searchable PDF with an invisible text layer over the original scan.

How to use it

  1. Step 1

    Open PDF2Text.

  2. Step 2

    Upload your scanned Thai PDF.

  3. Step 3

    Wait for OCR and AI proofreading.

  4. Step 4

    Copy or download the extracted text.

Frequently asked questions

What is OCR for Thai documents?

OCR (Optical Character Recognition) converts scanned images of Thai text into editable digital text. Thai script requires specialized handling because its characters, vowel marks, and tone markers are positioned differently from alphabets.

How accurate is Thai OCR?

Accuracy depends on scan quality, font size, and document condition. Clean, high-resolution scans of printed Thai text produce good results. Handwritten text or faded documents may need manual correction.

Can I OCR digital PDFs (not scanned)?

Yes. PDF2Text handles both digital PDFs with embedded text and scanned image-based PDFs. For digital PDFs, text extraction is faster and more accurate than OCR.

How large a PDF can I process?

PDF2Text accepts files up to 200 MB. Very long documents are processed in chunks automatically to manage accuracy and processing time.

Can I make a scanned PDF searchable?

Yes. After OCR, PDF2Text can generate a searchable PDF — the original scan stays visible but the extracted text layer enables Find & Search in any PDF viewer.

Related tools and guides

Merge PDF Combine documents before or after extraction. Split PDF Extract specific pages before running OCR. PDF2Text Open the full Thai PDF extraction tool.

Stop retyping Thai documents by hand

Scanned Thai documents pile up in organizations: government forms, signed contracts, printed reports. Retyping them manually is slow and error-prone. PDF2Text uses AI OCR tuned for Thai language to extract text automatically, then runs a proofreading pass to fix common OCR errors in Thai script. The result is editable text in seconds, not hours.

Extract Thai text