pdf print two pdf pages on one sheet
Print multiple pages per sheet per paper using Acrobat or Reader
- Choose File > Print.
- From the Page Scaling pop-up menu, select Multiple Pages Per Sheet.
- From the Pages Per Sheet pop-up menu, select a value.
- From the Page Order pop-up menu, select Horizontal, Horizontal Reversed, Vertical, or Vertical Reversed:
Click OK or Print.
:
https://helpx.adobe.com/acrobat/kb/print-multiple-pages-per-sheet.htm