PDF Language Detector
FreeDetect the language(s) of text in a PDF — free, no signup
About PDF Language Detector
Before you can translate, sort, or process a document, it helps to know what language it is in, and that is not always obvious from a quick glance. The AI Language Detector reads the text in your PDF and tells you which language it is written in, settling the question in moments.
Upload your PDF and the tool analyzes the text and identifies its language. It is free, browser-based, needs no account, and your file is processed only for the detection and not stored. It is a quick first step for organizing multilingual files or choosing the right translation, with the most reliable results coming from documents that contain a clear, single language and readable text.
Common uses
- Identify the language of an unknown document
- Sort multilingual files by language
- Decide the right translation target
- Verify a document's language before processing
- Triage incoming documents from many sources
How to use
- 1
Upload your file
Click the upload area or drag & drop your file. Supports APPLICATION/PDF. Up to 50 MB.
- 2
Click "Process — PDF Language Detector"
Click the process button. Your file is converted instantly on our secure servers.
- 3
Download your result
Preview and download your converted file. No watermarks, no quality loss, no expiry.
Why ToolHub?
- 100% Free — no account needed
- Works in your browser — no software required
- Instant results
- Secure and private
- No data stored
- Simple to use
FAQ
How does it detect the language?
It reads the text in your PDF and identifies which language it's written in based on the content.
What about documents with multiple languages?
It works best on single-language text. Mixed-language documents may return the dominant language or be less certain.
Does it need readable text?
Yes. For scanned image PDFs, run OCR first so the detector has actual text to analyze.
Can I use PDF Language Detector on mobile?
Yes — ToolHub is fully responsive and works on iPhone, Android, tablets and all modern browsers. No app install needed.