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Tips
on Preparing your Digital Files
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There are many different programs available
to the consumer today for graphic design and page layout.
It is important to understand however, that not
all desktop publishing programs work in the commercial
printing environment. While some home publishing programs
such as Printshop Deluxe®,
Print Master®,
JC Printshop® and MS
Word® seem easy to use and print from, they lack
the technical ablility to output
to the professional prepress equipment used in commercial
printshops. Before you spend hours designing
in an incompatible program, check with your service bureau
or printer to verify that the program will work
with their equipment first.
Most professional programs are available to the consumer now,
so many people are taking advantage
of these resources and creating their own graphics for printing.
Some of these programs include; Adobe
Illustrator®, Photoshop®, InDesign® and Pagemaker®.
Also, Corel Draw®, QuarkXpress®
and Microsoft
Publisher®as well. Not all
of these programs work for every facet of graphic design however,
and it is
important to know the purposes of each. Even now, software
developers are packing a lot more features
into these programs and many can be used for multiple applications.
But it is good to be aware of their
differences and plan accordingly.
Here are some tips on file preparation and program
use, we admit there may be more than one way
to accomplish some of these tasks, but these are common guidelines
that should help you make the
right decisions while creating your files. If you prepare
your digital media correctly, you can avoid the
costly mistakes that require the printer to correct (and charge
you for) later on.
What Programs Should I Use?
1. Vector Graphics
- For designing logos, and graphics to be used in a page layout,
use a vector art program
such as Adobe Illustrator®
or Corel Draw® save
these objects as EPS files (Encapsulated Post Script). You
can
then place or import them into your page(s) as needed. Vector
art is completely scaleable, in other words
you can reduce or enlarge the object to any size without losing
resolution when its printed. These programs
can also be used for single page layout such as a business
card, letterhead or data sheet as well.
2. Raster Graphics - Adobe
Photoshop® (just as the name implies) should be
used primarily for photo and
image manipulation. The newest version of Photoshop does a
lot more than before, including text editing and
such, but it is still a raster image program. Which means
that it is resolution dependant and cannot be scaled
without losing image quality. So unless you know exactly how
large to make a file for optimal reproduction,
you might make the image too small to print properly in the
commercial prepress environment. While we
won't go into great detail about photoshop's many capablities,
generally speaking, if you have photos, or
images to process; i.e. crop, resize, colorize or enhance
in some way, use Photoshop. Save your file(s) in
the format and color mode that will work for whatever application
you will be using it in. View the tutorials
included with your software for more information.
3. Page Layout - For preparing
a publication such as a newsletter or multi-page brochure
you need to use
a page layout program such as Adobe Pagermaker®,
InDesign®, QuarkXpress® or Microsoft
Publisher®.
These programs allow for multiple pages in one document and
have many output features for prepress
environments. You can also use them for single page documents
as well.
4. Adobe Acrobat (PDF) -
PDF (Portable Document Format) is a terrific tool for bypassing
all the problems associated
with file set up and printing. By embedding all the graphics
and fonts you can avoid platform issues later. But
knowing how to set up the PDF file is essential. Its important
to read your software documentation carefully to
make certain you have everything in order before printing.
The printshop cannot alter your pdf once you have
set it up, so you need to make sure there are adequate crop
lines and bleeds included in the file.
What about
Microsoft Word, Excel and Powerpoint?
5. Microsoft
Office - With the exception of MS
Publisher®, Microsoft Office Programs were never
designed to be
used for commercial printing purposes. Yes, MS Word can seperate
colors but only greyscale or CMYK at this point.
It also does not provide options for crop marks or trim lines
etc. which printers need for print registration and
bindery processes. Our advice is to use these programs for
what they we're designed for; MS
Word® for word
processing, MS Excel®
for spreadsheets and databases, MS
Powerpoint® for presentations. You can use
MS Publisher® for publication and page layout design.
It has some limitations for printers but generally speaking
it can get the job done and is a less expensive alternative
to the main programs that are used most often.
It cannot however process vector or raster images, you still
need Illustrator or Photoshop for that. Innovative
Print Media supports the latest version of MS
Publisher® for PC.
Can I Use
a Program in PC Format or Does It Have To Be In Macintosh?
6. Mac or PC?
- This question was very critical about 6-7 years ago
when professional prepress was solely based
on the mac platform. Today, its not as important. But you
can run into font issues with either environment if
the printshop you are taking your files to doesn't use the
same platform. So, here are a few things to remember:
A.
If you are using a vector art program like Adobe
Illustrator®, you should to turn all the fonts
into outlines
before saving the
file for printing. This will preserve all the characters in
their original state by turning each
one into an individual
object. Make sure you name the
file differently so as to not save over your original.
Once you turn fonts
into outlines you cannot edit them as text any longer.
B. If
you are using a page layout program like Adobe
Pagemaker® or QuarkXpress®,
you should include all
the font files you
are using with the rest of your images and document files
on your disk for the printer.
You should include
the screen and printer fonts of each font you use.
C. When
saving your files for print, its always a good thing to check
with the printer to make sure they have your
version of the software
that you are using. If not, you can usually save the file
down to the version that they
require. Most printshops
keep the latest versions of the programs that they use, but
might not have the latest
version of every
program out there. Its always a good idea to check first before
sending any files to them.
What Resolution Should I Make My
Image Files?
7. Image Resolution
(for Raster Files) - In commercial printing when you
create an image like a photo or background
shadow etc. the rule is not necessarily "the larger the
better" there actually is a threshold to how many dpi
(dots per
inch) a printing press line-screen can print and be seen with
the human eye. Some printing presses cannot reproduce
as high of screens as others - this is due to the dot gain
of a particular press. Generally speaking, most offset
"duplicator type" printing presses can reproduce
a line screen of about 133 lpi effectively. Most bearer cylindered
presses can produce a much finer screen up to 200 lpi in some
cases. A range of digital information from about
260 dpi to 350 dpi is all
that is necessary to reproduce these screens accurately. Depending
on the detail you
would like to preserve in your image you might need to use
a higher dpi that 350, however after about 400 dpi
the digital information starts to become too small to be translated
into even the highest of printing screens. In
general, 300 dpi @ 100% works fine for most instances.
8. Image Resolution
(for Vector Files) - Vector images do not use dots
to determine their resolution so they can
be much smaller files than Raster files with no concerns about
dpi. They are however dependant on the type of
output device as to how sharp they will print. When printed
on a 600 dpi laser printer for example, they may not print
as sharply as when processed through a high resolution film
imagesetter at 2400 dpi and printed with a printing
press. Some of the newest versions of Illustrator and Corel
Draw can convert files to contain both Raster and Vector
Images so its best to consult your programs documentation
for answers to those issues.
What's the Difference Between RGB
and CMYK?
9. RGB and CMYK
- When preparing the colors in your files it is important
that you convert all the colored elements
to their proper color mode before taking it in for printing.
To summerize briefly; RGB (Red, Green Blue) can only be
used to display color for your computer monitor. I know, it
prints out fine on your desktop color printer but thats a
different technology that converts everything to CMYK as it
prints. So, you need to convert all full color images to CMYK
then place them into your file. If you are doing spot colors,
you have to make sure they are set to the proper pantone
colors as well. Some Page Layout programs provide handy options
for checking all this information before you send it
to the printshop, sometimes known as "Preflighting".
Check your software documentation for more information on
that.
What Software and Hardware does Innovative
Print Media Support?
10. Supported
Programs - We use both mac and pc here at Innovative
Print Media.
For Macintosh: Adobe Illustrator 10, Photoshop 7, Acrobat
6, Pagemaker 6.5, Corel Draw 11 and QuarkXpress 5.0
Mac Operating Systems: O/S 10.3
Panther, O/S 9
For PC: Adobe Illustrator CS, Photoshop 6, Pagemaker
7, Acrobat 6, Microsoft Publisher 2003, QuarkXpress 5.0,
Macromedia Freehand 10 and Corel Draw 11
PC Operating Systems: Microsoft
XP Professional
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