Free Online Tool
PDF Translation
Translate PDF documents online for free. WuZhiZuo preserves original layout and structure, supporting 134+ language pairs with bilingual side-by-side view — ideal for academic papers, legal documents, and business contracts.
About Translate PDF
AI-powered high-accuracy conversion with multilingual support and multiple export formats
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
1
Upload file
Drag-and-drop your PDF file. Supports files up to 10 hours (Pro) or 30 minutes (Free).
2
AI processing
AI auto-detects language, identifies speakers, and processes your file — no manual configuration needed.
3
Download results
Export to Translated PDF or 6 other formats. Shareable links and subtitle files supported.
Supported formats
Comprehensive format coverage for all your needs
Input
PDF
Output
Translated PDF
Translated PDF
MP3
WAV
M4A
FLAC
OGG
AAC
MP4
MOV
AVI
MKV
WebM
PDF
Frequently Asked Questions
How to translate PDF document?
Upload your PDF document to WuZhiZuo — AI first transcribes the original content, then auto-translates to your target language. Supports 134+ language pairs, preserving original timestamps and structure.
What languages does PDF document translation support?
Supports 134+ language pairs including ZH-EN, EN-ZH, JA-ZH, EN-JA. Covers 95%+ of the world's native speakers, with support for multilingual mixed content.
Does PDF document translation preserve the original format?
Yes. Translation preserves the original PDF document structure including timestamps, paragraphs, and speaker labels. Subtitle translation preserves timecodes precisely for direct use.
Convert PDF for free now
No credit card needed — start your first conversion in 3 minutes
简体中文
English
繁體中文
日本語