How to prepare a layout for printing in PDF?

Question

Seal

How to set the dimensions of the departures and the size of the layout to the required size when exporting to PDF in Photoshop? (For example, A6)

Answer 1

In general, if you have something layout at hand, then it’s better to make up an image there and already make crosses, etc., there or even give it to those who will prepare a photo output for specific conditions (a printed sheet, a mixture of tasks, etc. )
And then Photoshop is still focused on image processing, and not preprinting. And in the end, no matter how I had to draw crosses by hand ...