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Analyze PDFs and documents with AI

Send a PDF directly into your WhatsApp chat and ask questions about the content: key points, deadlines, numbers, summary. Günther reads the document and answers in seconds.

Quick facts at a glance
AI model
OpenAI GPT-4.1-nano for fast, precise answers
File size
PDFs up to ~10 MB, ~40 pages for best quality
Languages
50+ languages, cross-language answers possible
Context
Multiple follow-up questions on the same document
Deletion
Document and chat auto-deleted after 30 days

Document analysis in 4 steps

1

Send PDF to the Günther chat

Share the PDF like any other file in WhatsApp (up to ~10 MB, ~40 pages recommended). Günther extracts the text automatically and keeps the content in context.

2

Ask questions about the content

Be specific: 'What are the 3 most important points?', 'Are there any deadlines?', 'What numbers are in the report?', 'Explain section 4.2'.

3

Receive an answer with references

Günther replies with a summary or direct quote and points out where in the document the information sits — for quick lookup.

4

Follow-ups or full summary

Ask as many follow-up questions as you like, request an executive summary, or export the result via /pdf.

What you get

  • Quick review instead of reading page by page
  • Targeted questions instead of full-text search
  • Multilingual — ask in EN about a DE document
  • Ideal for contracts, reports, proposals, studies
  • GDPR-compliant EU processing and encryption

Pricing

Document analysis is available on every tier (text chat unlimited). Image generation and voice follow monthly tier limits.

More relevant features

AI SummaryPDF from chatPrivacy AI

FAQs

Which file formats are supported?

Primarily PDF. Text content is extracted and analyzed. For Word documents (.docx), save as PDF first — one click in any office tool.

How long can the document be?

Technically up to ~10 MB, practically we recommend ~40 pages for best answer quality. For very long documents, chunking helps: send parts in sequence and ask questions per section.

Can I send sensitive contracts?

Data is encrypted (Fernet AES-128), processed in the EU, and deleted after 30 days. For highly confidential documents we still recommend pseudonymizing client names or amounts beforehand.

How reliable are the answers?

GPT-4.1-nano is very strong at structure questions, summaries, and fact extraction. For complex legal interpretation, have answers verified by a professional.

Can Günther read tables and numbers?

Yes, as long as they exist as text in the PDF. Image-only tables (scanned PDFs) require OCR — not currently integrated, but on the roadmap.

Try it free now

No download, no setup. Just start chatting in WhatsApp.

Start chattingView pricing