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Ninja supports PDFs, Word documents (DOCX, DOC), Excel spreadsheets (XLSX, XLS, CSV), images (JPEG, PNG, WEBP), presentations (PPTX), code files, audio files, and plain text. Most common business file formats are supported out of the box.

Ninja uses AI vision to read text within images (OCR), identify visual elements, describe image content, and extract structured data from charts, diagrams, or screenshots.

Yes. Once uploaded, your files stay in Ninja's memory for the given chat thread. You can ask follow-up questions, request deeper analysis, compare across files, or use the content as input for other tasks.

Yes. You can upload up to 10 files simultaneously. Ninja can analyze them individually or cross-reference information across all uploaded files in a single conversation.

Absolutely. All uploaded files are encrypted in transit and at rest. Your documents are never used to train AI models. Files are processed in isolated sessions and are not accessible to other users.

Individual files can be up to 50 MB each. For larger datasets, consider splitting files or using Ninja's API for batch processing.

Yes. Ninja's AI vision capabilities include OCR (optical character recognition), which can extract text from scanned PDFs, photographs of documents, and image-based files.