In this context, trim is the finished page size after the bleed is cut off.
Set the page up at 221 mm x 281mm and add a 3mm bleed all around. You'll want to set your margins to at least 3mm all around to use as a guide to the "safe zone" or area where all the important information is contained. Anthing closer than 3mm to an edge could get trimmed off if there is misalignment inthe binding or trimming.
When you export the PDF (to the publications specs, which they also should be supplying) be sure you check the box to "Use Document Bleed Settings" under marks and bleeds in the export dialog.
Sorry, I meant, Like John, to tell you to use 215 x 275 mm as the document size. I'm reading too quickly this afternoon.
Thank you John!
How did you find out the bleed to be 3mm and to change to document size from what I gave you? I like to know step by step so I don't have this problem again.
This is what i have:
So in the right photo the pink lines show that I will be losing some of my image/content, correct? Oh and what do you mean by "Of course margins and columns are up to you" ?
Thanks for you help!
How did you find out the bleed to be 3mm and to change to document size from what I gave you?
It's simple subtraction. Consider just the width:
Bleed: 221mm wide
Trim: 215mm wide
Subtract the trim size from the bleed size = 6mm, which represents total bleed, (left edge + right edge). Divide that evenly between the two edges = 3mm on each side. Height works the same way in this case.
Oh and what do you mean by "Of course margins and columns are up to you" ?
Just that they are internal to the page, and really only layout tools to help you position the various elements of your content. Peter did offer a very good suggestion of using the margin to demark a safe area to keep you from setting content too close to the trim. But that and the number of columns are left to you; which is why they aren't included in the output specs.
Sooooo... about that subtraction... Wow, i feel a little retarded now... I'm gunna blame it on my screen name
Anyways, thank you for the subtraction breakdown and the clarification about the margins and columns. You and Peter have helped me so much! Thanks guys!
Thank you for helping me!