On the other hand, you can send the ready-to-print file to the printing house.
 This is an export version of your design that is theoretically ready to go straight to print.
 You should contact the printer and see if they have a preferred format for print-ready files.

It was useful information, thanks for sharing 
45 $DEGEN

It's a good idea to confirm with the printer if they have specific requirements for print-ready files like file format, color mode, resolution, bleed, and trim marks. This will ensure that your design will be printed exactly as you intended without any issues
46 $DEGEN