• https://www.pdflabs.com/tools/pdftk-the-pdf-toolkit/
• PDF Toolkit
• PDF를 다양하게 편집할 수 있다.
• split, merge, rotate, watermark, stamp and secure PDF pages and documents.
• 책 스캔을 가능하게 해줌.

sudo apt install pdftk

• https://softwarerecs.stackexchange.com/a/10555

# 홀수 짝수가 정순일때
pdftk A=odd_pages.pdf B=even_pages.pdf shuffle A B output collated_pages.pdf
 
# 짝수 페이지다 역순일 때
pdftk A=odd_pages.pdf B=even_pages.pdf shuffle A Bend-1 output collated_pages.pdf

• https://gitlab.com/pdftk-java/pdftk

sudo apt install pdftk-java