Document types for Vertex AI RAG Engine

Only text documents are supported. The following table shows the file types and their file size limits:

File type File size limit
Google documents 10 MB when exported from Google Workspace
Google drawings 10 MB when exported from Google Workspace
Google slides 10 MB when exported from Google Workspace
HTML file 10 MB
JSON file 1 MB
Markdown file 10 MB
Microsoft PowerPoint slides (PPTX file) 10 MB
Microsoft Word documents (DOCX file) 50 MB
PDF file 50 MB
Text file 10 MB

Using Vertex AI RAG Engine with other document types is possible but can generate lower-quality responses.

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