Export to pdf
InDesign
choose format> Adobe PDF (Print)
choose preset PDF/X1a:2001
choose the relevant or all pages
export as pages, not spreads, for single pages and booklets
if needed, you can add crop marks and export!
Illustrator
choose format> Adobe PDF
you can select specific pages or all of them
choose preset PDF/X1a:2001
if needed, you can add crop marks and save!
Photoshop
choose format> Photoshop PDF
choose preset PDF/X1a:2001
under 'output' choose no color conversion > save PDF!
Procreate
Click on the Tools button> select menu Share
Share Image> PDF
Export_from_procreate_step_2.jpg
choose PDF quality> Best
from here you can: Save to Files, Print directly with the iPrint app, or AirDrop
Word
go to file> save as
File:Export Word 1.png
choose format> PDF
select 'best for printing' > export!