Offset printing is a commonly used printing technique in which the inked image is transferred (or "offset") from a plate to a rubber blanket, then to the printing surface. When used in combination with the lithographic process, which is based on the repulsion of oil and water, the offset technique employs a flat (planographic) image carrier on which the image to be printed obtains ink from ink rollers, while the non-printing area attracts a water-based film (called "fountain solution"), keeping the non-printing areas ink-free. The modern "web" process feeds a large reel of paper through a large press machine in several parts, typically for several metres, which then prints continuously as the paper is fed through.
Web offset printing is a type of offset printing that continuously feeds a roll of paper through the press. The paper is not precut but is after the printing is complete and then goes to bind or fold. Web offset presses are able to print on one or two sides simultaneously. With these features, web offset printing is perfect for those larger commercial projects. Web Offset printing is one of two variations of offset printing; the other being sheet-fed offset printing.
Offset printing press is a majorly used printing technique in which the inked image is shifted from a platter to an elastic blanket, and after that, it is finally transferred to the printing surface. Offset printing is the advanced method of the printing system in any language and format. The method of offset printing press are based on tradle, or rotary printing press in which the matter to be printed was to be primarily collected manually rather automatically. In offset printing press, the content which is to be printed, is fed in the system and after that with the help of the camera, it is film and exposed is prepared through chemicals and put into offset printing press machine for the final print.