Prepress How To
 
  Rules & Guidelines | File Organization | Fonts | Cover & Text Files | Software Applications| FTP | Media | Metafiles | Proofing Tips  
 
Digital File Prep Information


The following information will help you prepare your electronic art files for effective and efficient processing by Johnson Printing. One of the greatest obstacles to successful printing from digital art is improper file preparation. File testing is at no charge and identifies potential problems that must be resolved before going live. A simple test file containing at least one left-hand and one right-hand page is all that's needed to make certain that the process works for the customer and the printer alike. In order to manage digital prepress production and meet press schedule commitments, we must know the details regarding your files. Once a job is live, if we discover a problem with your files you have the option of repairing them, or you may authorize JP to perform the work at the rate of $85/hour. Changes, repairs, or delays may affect the project schedule. Your complete satisfaction is our goal!

Download Johnson Printing's FREE Online PDF Creation and Submission software PDF JobReady.

Download Johnson Printing's PDF settings & procedures.

Download Johnson Printing's PPDs Mac OS9, Mac OS10, Win 2000, Win 2003, or Win XP.


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General Rules & Guidelines

  • All process color images must be in CMYK format (process colors are Cyan, Magenta, Yellow & Black), not RGB (Red, Green, Blue). In order to proof and print to your satisfaction, RGB files must be modified to CMYK. If RGB color files are submitted, additional costs may be incurred and your schedule may be disrupted
  • CREATING POSTSCRIPT & PDF: The standard process is to save the file as a Postscript file, then distill it to a PDF file, using the recommended   PDF settings & procedures. Documents specifying how to create Postscript and PDF are available on this site

  • When creating PostScript from layout applications, make certain that all image files are TIFF or EPS (not PICT, GIF, JPEG, etc.). Color space must be CMYK or grayscal (not RGB). Font types should be Type 1 PostScript fonts (avoid Truetype and other fonts). Use 8-bit ZIP for compression (avoid JPEG and LZW). For more detailed information, see  PDF settings & procedures
  • Your document (page) size should be the same as the finished trim size of your book. Pages that are not sized the same as the finished trim size must be modified. As a result, additional costs may be incurred and the schedule may be disrupted. This is a common problem in web printing due to final trim sizes of 8.375"x10.875" (or digest size of 5.375"x8.375"). When the web process is used for any portion of your product, all artwork must be set up for this size, not 8.5"x11" (or digest size of 5.5"x8.5"). Another example of a page that requires modification is a smaller page (e.g., 6"x9") placed in a larger (e.g., 8.5"x11") template.
  • Make certain that adequate space is maintained between non-bleed page elements such as type & graphics, and the page edge. A minimum of 1/8" is called for on sheetfed work, and 3/16" on web work
  • Set up your files with the actual margins you want in the book
  • Bleeds must be a minimum of 1/8" beyond trim for sheetfed work, and 3/16" for web work. In either type of work bleed should not extend more than 1/4" beyond final trim
  • Please do not apply trap to your artwork. Trapping is performed during raster image processing
  • When using spreads, always use reader spreads instead of printer spreads
  • Do not include crop marks
  • Do not specify rules as "hairline", as this option is resolution dependent (i.e., the higher the resolution the thinner the line) and the appearance of the finished product may not be as desired. Suggested minimum line weight is 0.25 pt.
  • Placed graphics should be PostScript compatible (e.g., TIFF or EPS). Other formats such as PICT, WMF and others, may be problematic. If you have questions about your graphic files please contact your JP representative for information

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File Organization

  • To ensure we meet your deadlines, a little advance file organization and preparation goes a long way. Properly prepared files also help minimize additional charges. If you utilize "collect from output" in Quark XPress, "save for service provider" in PageMaker or "package" in InDesign, these functions will automatically perform the file operations listed below. Following are simple step-by-step recommendations for organization and preparation of your art
  • Create a folder named Johnson
  • Create two folders within the Johnson folder, named Fonts and Graphics
  • Place all fonts and graphics used in your document in these folders. Do not place other fonts or graphics in these folders, only those that you are using on the current project. Check to make sure any fonts used in EPS graphics are also included in your font folder
  • Place the file(s) to be printed loose in the Johnson folder. Always use consistent, logical naming conventions for your files
  • In addition to your files, also submit complete and current hard copy of all pages and other elements of your project

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File Naming Convention

  • File names should contain only letters, numbers, underscores, and periods
  • Limit file and folder names to a maximum of 31 characters
  • Please rename any files that contain spaces and other illegal characters such as: \ / : * ? & " < > |
  • Some other characters, such as hyphens (-), cause problems when transferring files and also should be removed. Renaming files and directories to include only letters, numbers, and underscores ( _ ) will eliminate any potential problems
  • Use only one period per file name. The period needs to be right before the filename extension. Use the underscore to substitute for any extra periods
  • Use correct filename extensions. Operating systems associate filename extensions with specific software applications. Adding the correct file extension to your file names will eliminate the need for you to choose an application when you open your document
  • Revision or correction files should be clearly identified to distinguish them from prior versions

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Fonts

  • All fonts (screen and printer) must be provided. If fonts are not supplied and are loaded by JP, additional charges may be incurred and text reflow may occur
  • Supplied fonts are used only for your work and are removed from our system after completion of your project
  • When using Macintosh fonts be sure to include screen and printer versions of Postscript fonts. *TrueType fonts consist of one item
  • Windows fonts are typically found in the “/windows/system” directory. Select only those you have used and copy them to the font folder you have created within the Johnson folder. For *Postscript fonts select the font with both “.pfm” and “.pfb” extensions. TrueType fonts have a “.ttf” extension
  • Check to make sure fonts used in EPS graphics are also included in your font folder
  • Do not use stylized fonts (i.e., styles such as bold-italic applied to a plain font), unless you're supplying the font, because the style will drop out in the process if the printer font isn't supplied. Instead, select the appropriate font from the font drop-down menu

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Color Application

  • Be aware of the color system you're using, which will affect whether you must identify color as separation or spot. Enter the actual CMYK percentages when specifying process tint matches to PMS colors, as different applications often generate different percentages and tints. Make certain you remove incorrect and unused colors from your document's color palette
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Supported Software Applications

To ensure that we consistently produce work that meets or exceeds requirements, it is critical that the input is of a type that enables us to do so. JP supports native file formats of all professional page layout and graphic arts applications on Mac and PC platforms (except where noted). Supported applications and release level include:

  • Adobe InDesign CS, CS2
  • QuarkXpress 6.5
  • Adobe Pagemaker 7.0
  • Adobe Acrobat 6.0
  • Adobe Illustrator CS, CS2
  • Adobe Photoshop CS, CS2
  • Corel Draw 11.0 (Mac & PC)
JP uses the most current version of each listed application once it has been thoroughly tested and proven to function properly within the digital prepress environment. If you have a newer version than listed, please contact your JP representative prior to submitting files. Use of older versions is not recommended as they may yield unsatisfactory and/or unexpected results.

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Non-Industry Standard Applications

Word processing programs, applications not listed above and non-desktop publishing programs should not be used to create native files. If such files are submitted, additional processing charges may apply. They can be used as source files and formatting charges will apply. Examples include MS Word, Word Perfect and DTP programs such as MS Publisher. We may accept Postscript or PDF generated from these files. Contact your JP representative for assistance.


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Submitting Files Via FTP

  • Contact your JP sales or customer service representative and apprise them that you wish to FTP files to JP. Your JP rep will provide you with a username and password. Keep these in a secure file, as they'll be required each time you access your directory
  • The JP system administrator will generate a directory for your organization (if one doesn’t already exist)
  • To FTP: The address is ftp://ftp.jpcolorado.com and your directory will reside in public/“your company”
  • Some browsers support FTP uploads-others don’t. If you use a browser that doesn't support FTP you'll need to use a program specifically designed for FTP transfers. Acquire a program such as Fetch for Macintosh or WS-FTP for Windows. If your browser supports FTP uploading, it should also support “drag and drop” of your files
  • Once you have transferred your files, contact your JP sales or customer service representative again to let them know you have sent the files
    Note: Please limit the upload file size to 50mb. Although you could send larger files through a T1 line, we ask this to control traffic volume. Larger files should be sent via disk
  • All files must be stuffed or zipped to ensure file integrity during transfer
  • FTP access is available 24-7 via T1. Files sent via FTP must be compressed and saved in a self-extracting format (PC files should be encoded with *.zip). Please consult with JP's prepress department to obtain transmission authentication
  • Live and test files can also be submitted via PDF JobReady

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Metafiles

A metafile isn't an acceptable file type and should be completely avoided. A metafile is essentially a "copy" and "paste" Windows system graphic. It is convenient because one can move a graphic or image from one program to another with the push of a button. Problems arise in high-resolution workflows wherein Metafiles may drop out, appear at lower resolution, or print incorrectly. Metafiles do not utilize a disk file or link, so if there is an alteration to be made to the graphic we cannot edit it. Because of the problems inherent in metafiles JP can't safely accept digital documents that contain them, nor can we be held responsible for quality/integrity throughout the process - even if the proof shows the image(s) correctly. As an alternative, save the graphics using another method that works in prepress systems (i.e., EPS, TIFF). If you do choose to supply metafiles, JP can requote the work to be performed, including services such as scanning of affected pages or specific graphics.


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Proofing Tips

You've invested a substantial amount of time and money into your project, and there is one very important pre-production step that calls for at least as much attention as any preceding activity. That activity is, of course, checking your proofs and making corrections before the project moves too far through the production pipeline to make changes economically. The proof is the last look prior to commencement of presswork. Therefore, a correction that is made on a page proof may cost just $10, but the same correction may cost ten times as much if made on the digital blueline and one hundred times as much if made once the job is on press. The best course of action is to begin by submitting complete, correct press-ready digital files as well as a current laser print of your project, then refrain from making changes thereafter. In addition to adding cost to the project, changes may also affect your production schedule.

What sort of items should you look for when reviewing proofs? Here are the primary items:

  • Do the fonts look correct?
  • Are there any low-resolution images?
  • Are pages in the correct sequential order?
  • Is the correct copy used?
  • Is there any reflow of copy?
  • Does all art appear as designed and specified?
  • Are all elements positioned on each page as specified?
  • Are halftones cropped as specified?
  • On bound products, is the inside margin adequate? (This is particularly important on wire-o or loose-leaf books, since drilling or punching may interfere with page elements if inadequate space is allowed)
  • If two or more colors are specified, are the color breaks correct?

If, when looking at your proofs you determine corrections need to be made, following are a few recommendations on how to mark up the proof:

  • Use a permanent red marker, such as those available from your JP rep
  • Indicate pages that require corrections with a paper clip at the top of the page. Although some people like to use Post-it® notes, they are more likely to fall off during handling
  • Write legibly and err on the side of more descriptive information than might be deemed necessary
  • If you make changes to a digital file make certain you submit a new laser page showing the change
  • If you conduct your proofing using a PDF Softprooof, JP will output a hardcopy proof for print production reference. After you complete proofing your softproof, please email your JP customer service rep to confirm approval, alterations, etc.

If your corrections are extensive or complicated, your JP sales or customer service representative will be glad to review them with you in person. If that is not possible, reviewing the corrections over the telephone with your JP customer service representative is the next best thing. After you have completed the review of your proof, please remember to sign the accompanying proof card. Your signature confirms you have reviewed the proof and is an acknowledgment that you have found the proof to be error-free, or that it requires the noted corrections prior to printing.

Once again, take your time, review your proofs carefully, and a successful outcome will be yours!

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Johnson Printing 1880 South 57th Court Boulder, Colorado 80301
(800) 824-5505  (303) 443-1576   FAX (303) 998-7590    www.jpcolorado.com
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