No upselling and no vague rules of thumb — the actual arithmetic behind resolution, what each banner material is for, why colour shifts on press, and where the money goes.
The 300 DPI rule comes from things you hold in your hand and has almost nothing to do with a banner. Here is the arithmetic that decides it, and what your file really needs.
Bleed is the extra artwork past the trim line that stops a white sliver appearing on the edge of your print. Here is how much to add, when you can skip it, and what the safe area is for.
Scrim vinyl, blockout, mesh and fabric explained — what each one is for, when the heavier option is worth paying for, and when it is a waste of money.
Grommets every two feet, welded hems, pole pockets and wind slits — what each finishing option does, what it costs you in usable design space, and which to ask for.
Screens make colour with light, presses make it with ink, and some screen colours simply cannot be reproduced. What shifts, why, and what to do about it before you print.
AI, EPS, PDF, SVG, JPG, PNG — what the difference actually is, why it decides whether your logo can be enlarged, and how to tell what you have.
The 24 × 18 standard, what coroplast flute direction has to do with your sign surviving, single vs double sided, and how to lay one out so it can be read from a moving car.
How print shops price by square foot, what drives the number up, why the same banner varies between shops, and where you can genuinely save money.
