Please set up your documents using Desktop Publishing software such as Adobe Products or consult a professional graphic designer. You can also download templates. You can find templates here: TEMPLATES
The most important terms to know are:
Bleed: In printing, bleed is printing that goes beyond the edge of where the sheet will be trimmed. In other words, the bleed is the area to be trimmed off. The bleed is the part on the side of a document that gives the printer a small amount of space to account for movement of the paper, and design inconsistencies. Artwork and background colors often extend into the bleed area. After trimming, the bleed ensures that no unprinted edges occur in the final trimmed document.
It is very difficult to print exactly to the edge of a sheet of paper/card, so to achieve this, it is necessary to print a slightly larger area than is needed and then trim the paper/card down to the required finished size. Images, background images and fills which are intended to extend to the edge of the page must be extended beyond the trim line to give a bleed.
Bleeds in the US generally are 1/8 of an inch from where the cut is to be made. Bleeds in Europe generally are 2 to 5mm from where the cut is to be made. This can vary from one print company to another. Some printers ask for specific sizes; most of these companies place the specific demands on their website or offer templates that are already set to their required bleed settings.
Resolution: The generally accepted value is 300 pixels/inch. Printing an image at a resolution of 300 pixels/inch squeezes the pixels in close enough together to keep everything looking sharp.
Resolution is the measure of pixels in the display, usually expressed in measurements of width x height. For example a monitor that is 1920 x 1080 is 1920 pixels across and 1080 pixels down.
Higher resolution means more detail. Higher DPI means higher resolution. Resolution is not “size”, but it’s often confused with it because higher resolution images are often bigger, but that doesn’t necessarily have to be the case.
DPI (Dots per Inch): The number of dots in a printed inch. The more dot’s the higher the quality of the print (more sharpness and detail).