Enable/disable page break characters between pages.
[read/write property] pageBreaks([out, retval] VARIANT_BOOL *pageBreaks) pageBreaks([in] VARIANT_BOOL pgBrks)
By default, XpdfText will insert a page break (form feed) character at the end of each page. If this property is set to false, pages will be extracted with no separator between them.

This setting is global - it applies to all PDF handles.

pdf.pageBreaks = False