Using state of the art software, your file is first "Pre-Flighted".
Any requested alterations are performed by our staff. We then output
a "proof", that you use to verify that the document is correct, that
the cover art is correct, and that any requested alterations have
If you find that you need to make changes, these are called Author
Alterations, and are usually an addtional charge (most places, especially
Adibooks, will make minor changes and corrrections when the proof
is being made without additional charges. This is done at the printers
discretion.) A check copy is then made.