Generally speaking nexGen Grafix can accept files from all modern page layout software. Adobe Creative Cloud applications are all supported, as is QuarkXPress (saved back to version 9). For these applications please use the “Package” or “Collect for Output” feature to ensure that all fonts and links are included.
PDF files are certainly acceptable, assuming that some basic rules are followed: files should include 0.125” bleeds on all edges, crop marks should be turned on (with 0.125” offset), and output should be set for single pages, not spreads. Note that we can use Adobe Acrobat to modify PDF files in some basic ways, but editing of paragraphs of text is usually not possible, so that if you do need changes made, it will generally be your responsibility to provide an updated file, set up in exactly the same way as the original.
Files can be submitted on disk, USB drive, via email, or using our FTP server. Of course any other online transfer method is also agreeable.