UiPath clipboard AI : payload is too large

I’m trying to copy a PDF which consists of 3 pages of passport, and I would like to paste them in an excel file. Somehow this is a result that I got. It says “error 413 (payload is too large)”. Why is that? and Is there a way to fix it?

Updated
I tried to use the files which only consist of 2 pages, and now the error didn’t show up (I guess the file can’t be too large), but when I paste them into my Excel file, it only pastes the data from the first page of the file. Does this mean the UiPath Clipboard AI doesn’t work for multiple pages?