pdfunite is fairly easy to use.
pdfunite PDF-sourcefile1..PDF-sourcefilen PDF-destfile
Another way is to use QPDF. I've learnt to add --empty from
@qpdf/qpdf:#12.
qpdf --empty --pages *.pdf -- out.pdf
pdfunite is fairly easy to use.
pdfunite PDF-sourcefile1..PDF-sourcefilen PDF-destfile
Another way is to use QPDF. I've learnt to add --empty from
@qpdf/qpdf:#12.
qpdf --empty --pages *.pdf -- out.pdf