The language of the PDF file is English, French, German, Spanish, Italian, Brazilian Portuguese, or Japanese.
The file size must be less than 100 MB.
The file can have up to 600 pages.
The PDF shouldn’t be password protected or have any usage restrictions.
The file shouldn’t be a PDF Portfolio.
The maximum character limit for the text selection feature in AI Assistant is 8000 characters. The selected text must be on a single page and cannot span multiple pages.