As the paper is folded into a pouch pocket to put inserts. Most made slightly larger than A4 paper in order to insert the paper A4.
Such as quotations, etc. advertisement.
May or short, thick, colorful design needs. Or a CD holder, business card holder, etc.
Size when folded up to 17.5 x 21 inches for the file. Excluding parts include five more. Such as a CD case
Popular 300-360 gsm art paper card is selected, it is one-sided or two pages.
Offset printing from 4-5 colors or as needed.
Special printing techniques
May have special printing techniques to enhance the beauty and interesting.
Such as coated UV, Spot UV, gloss coating. And the plastic coating The resistance to tearing. And wet Gilt (Hot Stamp), stamped (Embossing), which most of the characters, logos.
Foldable Design may be short. Or break a 2-4 fold depending on the design.