This was based on a post from chaley...
Quote:
Originally Posted by chaley
search for "formats:#>1" (no quotes) or for whatever number you want. The hash sign tells calibre to count the number of values instead of looking at the values.
|
means the count of the values in formats so
means books with only one format.
And then
means books which are in PDF format, so
Code:
formats:#=1 and formats:pdf
means books with only one format, and that format IS PDF.