Free Online Tool

PDF OCR — Free Online PDF Optical Character Recognition | WuZhiZuo

Free online PDF OCR recognition. WuZhiZuo supports PDF image text recognition in 134+ languages with 99% accuracy — ideal for scans, photos, and screenshots.

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About PDF OCR

AI-powered high-accuracy conversion with multilingual support and multiple export formats

AI-Powered Accuracy

134+ language support

Speaker Diarization

Secure & Private

7 Export Formats

Fast {format} Output

Convert in 3 easy steps

From upload to export in under 3 minutes

Upload file

Drag-and-drop your PDF file. Supports files up to 10 hours (Pro) or 30 minutes (Free).

AI processing

AI auto-detects language, identifies speakers, and processes your file — no manual configuration needed.

Download results

Export to Text or 6 other formats. Shareable links and subtitle files supported.

Supported formats

Comprehensive format coverage for all your needs

Input

PDF

Output

Text

Text MP3 WAV M4A FLAC OGG AAC MP4 MOV AVI MKV WebM PDF

Frequently Asked Questions

How to perform OCR on PDF?

Upload your PDF to WuZhiZuo and select the processing task. Supports both scanned and native PDFs, up to 100MB. Download the result directly after processing — no software installation needed.

Can it handle scanned PDFs?

Yes. WuZhiZuo's OCR engine supports scanned PDFs in 134+ languages with up to 99% accuracy. For low-quality scans, use the image enhancement feature first to improve recognition.

What's the quality after perform OCR on PDF?

Native PDF conversion preserves 95%+ of structure and formatting. OCR text accuracy: 99%. Translation quality approaches human level for fast reading. Layout, tables, and images are all preserved.

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