2.2 All Files Submitted as PDFs | v.20210625
Adobe software is recommended when creating print files.
PDF files are the most commonly used format in the printing industry. When saving PDF files, please pay attention to the following:
√ Your PDF should be compatible with Acrobat 7 (PDF 1.6) or higher.
√ Your PDF should use the color profile U.S Web Coated (SWOP) v2 to match our factory’s color calibration.
To make things easier, LongPack has a PDF Export profile available for Adobe products that will set the items above, and do a couple of other neat tricks (e.g., converting RGB images to CMYK when the file is exported). You can find that profile at LongPack website: http://www.longpackgames.com