I attempted to upload a PDF and ask some questions regarding its contens, but ChatGPT 4 responded with an error message indicating that the PDF appears empty or inaccessible, which contradicts my experience as I successfully interacted with the same PDF a few weeks earlier without any issues.
Here's the error message I received:
It seems there was an issue with opening the file "Il Sentiero dei Nidi di Ragno." The page had no contents, which could indicate a problem with the file format or an upload error. Could you please try uploading the file again, or let me know if there's anything specific you'd like to ask about the book?
The PDF in question is 640KB, allows for text selection, and is not safeguarded by a password