This article is the second in our series to help you understand some of the terminology used in the duplication process
Artwork Files:
Beware, we are now moving into the area of artwork and the word image no linger relates to a disc image! When talking about artwork, and image is simply a picture, a graphic or photograph
PDF stands for “portable document format.” Adobe Systems designed this format, which has become the standard for exchanging electronic documents. Its a very complex and powerful format used extensively in artwork design and printing, perfect for supplying your artwork supporting the other artwork formats below, as well as special print formats, colours and vector graphics.
JPEG, TIFF, and PNG
These image formats are ideal for photos and similar images containing many colours offering good quality and acceptable sizes are possible. The quality / file size of a jpeg can be altered through the use of compression.
The three formats all vary slightly in the way they apply compression to the images, each with its own advantages. For printing its best to keep the compression at a minimum so the files are larger and better quality.
PSD
This format is only used by the graphics programs Photoshop. The files are generally large and contain lots of additional information and layers which are not needed for print. The complexity of the files make them perfect for editing and designing, BUT not ideal for printing. You should save your artwork to PDF or JPEG when ready to submit for printing.
To learn more about artwork formats this article is a good place to start, offering beginner guides to the various types: Further information on artwork formats.