I'm designing something for print by a professional publisher (A4 size booklet, 20 pages). As such, they have requested a 3mm bleed and crop marks.
I've managed to sort these out successfully, but have one question.
As the booklet is A4, saddle stitched in the middle, I'm assuming it'll be printed on A3 paper and folded down the centre. Therefore, do I need to create a bleed on the side of A4 which will be folded and will form the centre of the booklet?
I hope that made sense, all help appreciated.