OptionalfromThe number of the first page (1-based) to include.
OptionalinvertedIndicates if the range's iterator should go from the end of the range backwards.
OptionalpageThe array of page numbers (1-based) to include.
OptionalpagesThe string specifying page numbers (1-based) and page intervals with dashes ('-'), separated by commas (','). A dash at the start or at the end of interval implies infinity.
OptionaltoThe number of the last page (1-based) to include.
Specifies which pages of the PDF document has to be exported or merged. Note: all page numbers are 1-based.