For Magazine Printing
There are many ways to create PDFs from your document in today’s layout applications, however when preparing them for an LSC Communications Digital Solution Center it is important that they are prepared according to the Digital Solution Center's specifications to ensure proper printing. The below information is specific to the Magazine Digital Solution center in Pontiac, IL however many of the same rules apply to other LSC Communications DSCs. If you have any questions regarding file preparation please contact your Technical Systems Analyst for assistance.
A file that can be prepared and viewed on-screen, by anyone, anywhere, is a powerful tool in the arsenal of print production. The Portable Document Format (PDF) is just such a file. PDF files give a good impression of how the page will look upon output; however, keep in mind that merely generating a PDF will not fix a poorly constructed page. To ensure its suitability for print, take it a step further and make it a PDFx-1a file—a focused subset of PDF designed specifically for reliable prepress data interchange—which can help you realize the full potential of this flexible and efficient file format. PDFx-1a file format is the preferred file format of the LSC Communications Digital Solution Center.
Files received at an LSC Communications Digital Solution Center (DSC) must be accompanied by a composite laser proof. If separations are not provided, mark composite lasers for color breaks and spot color usage. Mark “for position only” (FPO) graphics with “FPO.” PDF / PDFx-1a received at a DCS must be single-page only and undamaged. Include page folios in the file name. This makes it easier to identify which document to process for a specific page (see File Naming Guidelines).
All component files and resources (linked EPS and TIFF images) must be embedded. Embedded raster files must be in composite TIFF or EPS format. Do not place a pre-separated element in a page that will be output as composite.
Nesting EPS files within EPS files can cause errors. Placed DCS files containing raster data with non-compliant output resolutions can cause artifacts. These situations are not recommended in files intended for print.
Set continuous tone images meant for high-resolution output to an effective resolution greater than or equal to 266 PPI.
ZIP and JPEG (maximum quality) compression may be used in images.
OPI (Open Prepress Interface) is allowed for assets stored at a DSC where LSC Communications has provided the low-resolution placement files.
To create a good PDF file from an approved application file:
Fonts – Do not "menu-style" your fonts. These styles may not have matching printer fonts available and may not print correctly. For effects such as bold or italic, select a bold or italic font.
Design Tips - Although design and layout programs support many ways to create a document, some things should be avoided as they can cause problems in some plate making systems.
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