You've got a contract in Spanish. Your client only speaks English. You could copy and paste the text into Google Translate — but you'd lose the formatting, and you'd have to do it page by page. Or you could just translate the entire PDF at once.
PDF Translator uses AI to translate the text of your entire document into another language in one pass. It's worth being upfront about what it produces, though: the output is a plain translated text file, not a re-typeset PDF that looks like the original — more on that below.
The challenge with translating a PDF isn't just the translation itself — it's what happens to the document afterward. This tool solves the translation part well; it doesn't attempt to rebuild a formatted PDF around the translated text.
How it works
The tool extracts the text from your PDF and translates it using AI. It doesn't reconstruct a new PDF around the translation — you get the translated text back.
- Upload: You upload your PDF. The file stays in your browser.
- Select language: Choose the language you want to translate to, from a list of 31 supported languages.
- Translate: The AI translates the extracted text, aiming to preserve context and meaning.
- Review: You get the translated text back on the page, where you can read or copy it.
The process is significantly faster than manual translation, but it's worth noting that speed comes with some trade-offs. The translation quality is generally strong for common languages, but it's not perfect. For most business and personal use cases, it's more than sufficient. For legal contracts or medical documents, you'd still want a human review.
Languages supported
PDF Translator supports 31 languages, covering the needs of most users.
- Popular languages: English, Spanish, French, German, Chinese (Simplified and Traditional), Japanese, Portuguese, Russian, Italian.
- Regional languages: Arabic, Hindi, Korean, Turkish, Dutch, Polish, and more.
- Total: 31 languages are available in the dropdown. Languages outside this list aren't currently offered as a target.
It's worth noting that translation quality varies by language. Common languages like Spanish, French, and German tend to translate more reliably, since the underlying model has seen far more training data for them. Less common languages may have somewhat lower accuracy.
What the output actually is
It's worth being precise here, since "translate a PDF" can sound like it means something it doesn't.
- What you get: The translated text of your document in plain text form, readable and copyable from the result.
- What's not reproduced: Fonts, page layout, image placement, table structure, and hyperlinks aren't carried over into the output — those exist in the original PDF, not in the plain-text result.
If you need a translated document that visually matches the original PDF's formatting, you'd need to manually re-lay the translated text into a document editor or a PDF creation tool afterward. This tool handles the translation step, not the re-typesetting step.
When to use a PDF translator (and when not to)
This tool is most useful when you need to understand a document in another language without waiting for a human translator. Business proposals, internal communications, personal documents, and academic papers are all good candidates.
However, there are clear limitations. The tool should not be used for legally binding translations unless you have a human review. It shouldn't be used for documents where precision matters — medical records, patent applications, or anything where a single word makes a difference. And it works best with well-structured, clearly written text. Handwritten notes or documents with unusual formatting will produce lower quality results.
It's also worth thinking about your audience. If you're translating a document for yourself, the tool is perfect. If you're translating a document for a client or a colleague who doesn't speak the source language, the tool is also perfect — but you should still review it before sending. If you're translating for a public-facing audience where the translation represents your organization, the standard is higher.
A note on privacy
The PDF itself is opened and its text is extracted in your browser. That extracted text is then sent to PDFly's server, which forwards it to our AI provider for translation. The original PDF file is not uploaded. If a document contains information you'd rather not have leave your device at all, that's worth knowing going in.
This extracted-text-only approach is more limited than uploading the whole file, but it's still not fully local processing — the text does leave your device to generate the translation. If you need something that never leaves your device at all, use PDFly's non-AI tools instead.
Limitations
- The extracted document text is capped at 40,000 characters (roughly 10,000 tokens). Longer documents are automatically truncated to the 40,000-character limit before translation.
- The tool translates the text content — it doesn't rebuild the original PDF's layout, fonts, or images in the output.
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Open PDF Translator ToolFrequently Asked Questions
How accurate is the translation?
The translation quality is generally strong for common languages, but it's not perfect, especially for technical or highly specialized content. For critical documents, consider a human review. Accuracy is generally higher for common languages and lower for less common ones.
Can I translate a scanned PDF?
Only if it has selectable text. This tool doesn't include OCR itself — for an image-only scan, run OCR PDF first, then use the extracted text.
Will the translated PDF look like the original?
No. The output is plain translated text, not a re-typeset PDF — the original layout, fonts, and images aren't reproduced.