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Basic requirements for digital
printing:
- Set the color mode to RGB.
- Your images must be scanned
or created
at 150dpi at the final output size.
- Text: Rastersize all text in PhotoShop or
convert to outlines in Illustrator.
- Flatten all layers (Photoshop).
- Do not embed any color profiles when saving.
- Save your files in either
TIF, EPS, PSD, PDF or JPG format.
- Mail us the CD or DVD.
Questions & Answers
Q: I copied a picture off a
website, wondering can you guys make it into a poster for me?
A: Sorry, we can't. First of all, it is
illegal to reproduce someone else's work without a release from the copyright's
owner. Second, most images on the Internet are compressed then saved at 72dpi for
faster page loading purpose. The resolution is just not high enough for
printing.
Q: I use Illustrator to create my
graphics, what format should I save them into?
A: Simply outline all the text, then save your design in EPS
format.
Q: When saving my image files from Photoshop®,
what format should I use?
A: You can save them in either TIF,
PSD or JPG format. Please note: If JPG format is your choice, please do not
compress the image, otherwise the image quality will be degraded. If you choose
to use TIF, you may also select the LZW compression method to reduce the file size,
yet without losing the image quality.
(See Fig. 1)
Fig. 1
Q: You say the image should be created at
150dpi (pixels per inch) at the final output size. Just what does it mean by final output size?
A: For example, if you were creating
your artwork with Photoshop® and would like us to print a 24" x 36" poster for
you. 24" x 36" would be your final output size and 150dpi would be the
resolution that we need to produce a photo quality print for you. So before you
begin, you should create your file by setting the height and width as 24 inches by 36 inches and
the resolution at 150dpi.
(See Fig.2)
Fig.2
Q: I use a digital camera, how big can
I enlarge my photos?
A: You can simply use the following
equation to calculate that.
Number of Pixels divided by 150 dpi = Maximum
size of the print.
Example: The dimensions of your photo is 2048
pixels tall x 1536 pixels wide.
Step 1) 2048 ÷ 150 = 13.65 inches tall
Step 2) 1536 ÷ 150 = 10.24 inches wide
Therefore, the maximum size of the print can
be as large as 13.65" x 10.24".
You can refer to your camera's owner's manual
for the maximum pixel dimensions.
Q: Should I create my artworks or scan
my color photos in RGB or CYMK color mode?
A: You should use RGB color mode for all your color
projects. It gives you a wider color gamut then CYMK does. Also, we're not a
offset printer, we do not need to perform color separation.
Q:
Do you guys do B&W prints?
A: Yes, we do. Simply save your images
in Grayscale mode.
Q: I have created an 8" x 10" image in Photoshop®
at 200dpi, can I enlarge it by resizing it?
A: Sorry, you can't. The 8" x 10" at
200dpi is your artwork's physical size, you cannot enlarge it without
sacrificing the image quality. Photo editing software enlarge an image by
resampling it. Since the size of the image will increase, but the number of
pixels will not. So during the resampling process, the software adds pixels to
your image by guessing in order for it to fill in the gaps. The resulting image
quality is poor. (See samples
below)
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Sample 1
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Sample 2
 |
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Click on the samples above and save them
into your hard drive, then use your photo editing program to view
each sample at 100% and you'll see what we are talking about.
Sample 1 above is in its original size
and resolution, and Sample 2 demonstrates what will happen when double
its size and resolution by resampling. Notice the artifacts? These artifacts will appear in the
print also. |
Q: I want to scan my own photos and
turn them into large prints, what scanning resolution should I use?
A: You have to determine how many
times you wish to enlarge them to. For example, you have a 4" x 6" photograph and
you want to enlarge it to a 16" x 24" poster. Which is 4 times larger than the
original. Then the scanning resolution would be 150 dpi x 4 = 600dpi. So you
should set your scanner to scan at 600dpi.
Q: My scanner has the maximum optical
resolution of 600dpi but its software says I can scan pictures at 4800dpi, does
that mean I can enlarge my pictures many times bigger?
A: Not really. Because in the printing
industry the only workable resolution is the optical one. This is the maximum
resolution of your scanner can achieve. Everything else are generated by the
software itself and which will produce undesired results. For the best result,
stay within the optical resolution range. Or you can simply mail your pictures
to us and we will scan them for you.
Q: I'm a painting artist, I want to
make copies of my works for sale, can you help me?
A: We certainly can. Take pictures of
your artworks then send us the photos or scanned images and we can make as
little or as many copies as you want. However, if you are not comfortable with
photography, we highly recommend that you locate a professional photographer who
is specialized in this field to assist you.
Q: We own a sign shop, once in a while
we have some print jobs come through the door, but not enough for us to go buy a
printer, can we sub it out to you guys?
A: Yes, you can. Please
contact us for
more details.
If you have any other questions, please feel
free to
contact us.
Photoshop® is a registered trademark of
Adobe Systems Incorporated.
Adobe product screen shot(s)
reprinted with permission from Adobe Systems Incorporated. |