HELP: Convert .jpg to CMYK .jpg?

[attorneyatlaw]

PLEASE HELP.

I created a 300 dpi .jpg picture. My printer company says that he MUST
have the .jpg saved in CMYK .jpg format. Is there a program out there
than can easily convert my .jpg file into CMYK format??

ANY INFO WOULD BE ENORMOUSLY APPRECIATED. Thank you GREATLY in advance.

 

[old jon]

PLEASE HELP.

I created a 300 dpi .jpg picture. My printer company says that he MUST
have the .jpg saved in CMYK .jpg format. Is there a program out there
than can easily convert my .jpg file into CMYK format??

ANY INFO WOULD BE ENORMOUSLY APPRECIATED. Thank you GREATLY in advance.

A good printer company should be able to do the conversion you need for you.
bw..OJ

 

[aafuss]

Maybe try looking at Ifranview

 

[Mel]

PLEASE HELP.

I created a 300 dpi .jpg picture. My printer company says that he MUST
have the .jpg saved in CMYK .jpg format. Is there a program out there
than can easily convert my .jpg file into CMYK format??

ANY INFO WOULD BE ENORMOUSLY APPRECIATED. Thank you GREATLY in advance.

The JPEG format will support the RGB, CMYK, and grayscale color spaces.
The use of JPEG images is supported in HTML and Web applications.
However, unlike a GIF file, all of the color information is stored in
the file. There is no support for transparency in a JPEG file.

Converting your RGB images to CMYK should be one of the final steps
before sending your image to a commercial printer (Also see Out of
Gamut ). Although your inkjet printer may use these four colors of ink,
you do not need to convert images to CMYK for printing on consumer-level
desktop inkjet printers. In the case of desktop printers, the RGB to
CMYK conversion is handled by your printer driver.

CONVERTING RGB COLORS TO CMYK COLORS
If we will receive a file in RGB mode, we will automatically convert the
files to CMYK mode for printing. We cannot print from files that are
saved in RGB mode. If you do not want us to change modes for you, then
you should convert your RGB file to CMYK mode yourself, before
submitting same file. Not every RGB color has a CMYK equivalent with the
result that there could be more than subtle color shifts. If you have
not yet designed your project and are reading this for the first time,
please do not even attempt to design in RGB mode, but start designing
from scratch in CMYK mode . This way, you will not be surprised at the
end of your project, when you will have done all your detailed work and
finally decided to convert your painstaking project to CMYK mode for
submission to us.

The CMYK format is designed to give clarity and brilliance to the
printed product, but the luminosity of a CMYK file, unfortunately, will
never duplicate the luminosity one sees on the monitor. That is the
reason for the difference in the quality of the images on the monitor.

If you were not satisfied with the look of your file after converting
from RGB to CMYK mode, then it will be necessary for you to modify your
design to suit your taste. In the future, if you will design a card for
printing, the card should be originally designed from scratch in CMYK
mode and the colors that will appear on the monitor should duplicate
well in the final printing process.

In order to enhance colors when you will print with us, we additionally
process your cards with clear liquid high gloss UV coating on both
sides. Not only does our free UV coating increase brilliance of printed
colors but it also extends the life and protects your cards from
soiling.

Also graphics viewed on a monitor cannot be viewed at resolutions more
than 72 dots per inch, whereas we typically print your graphics at
resolutions of 300 dpi (from graphic files submitted at this resoltion).
This quality of reproduction somewhat will make up for the loss in
luminosity.

http://www.sisf.minoh.osaka.jp/MM/RGB_to_CMYK.htm

http://www.pricelesswarehome.org/2005/PL2005GRAPHICS.php

 

[CoMa]

PLEASE HELP.

I created a 300 dpi .jpg picture. My printer company says that he MUST
have the .jpg saved in CMYK .jpg format. Is there a program out there
than can easily convert my .jpg file into CMYK format??

ANY INFO WOULD BE ENORMOUSLY APPRECIATED. Thank you GREATLY in advance.

You can do it in
ImageMagick

convert rgb.jpg -profile sRGB.icm -profile USWebCoatedSWOP.icc cmyk.jpg


/CoMa

 

[k]

| >On 21 Jul 2005 08:46:24 -0700, (e-mail address removed) wrote:



| The CMYK format is designed to give clarity and brilliance to the
| printed product,


no, it's designed to allow them to use an image straight up without having
to send it through a RIP. It also means they can use their 4 colours dot
for dot without having to work out a mix



but the luminosity of a CMYK file, unfortunately, will
| never duplicate the luminosity one sees on the monitor. That is the
| reason for the difference in the quality of the images on the monitor.

true..


| If you were not satisfied with the look of your file after converting
| from RGB to CMYK mode, then it will be necessary for you to modify your
| design to suit your taste. In the future, if you will design a card for
| printing, the card should be originally designed from scratch in CMYK
| mode and the colors that will appear on the monitor should duplicate
| well in the final printing process.


hmm.. still, the advice re working in CMYK is sound IF you use a print
service that only outputs through a 4 colour printer.



| Also graphics viewed on a monitor cannot be viewed at resolutions more
| than 72 dots per inch,

rot. This sounds like a 1980's mac users hype.

check the monitor resolution you're using, measure the screen then discover
96/100/120 are not unusual for windows (and now even mac ;-) users..


whereas we typically print your graphics at
| resolutions of 300 dpi (from graphic files submitted at this resoltion).
| This quality of reproduction somewhat will make up for the loss in
| luminosity.

<hmmph!>

(* digression - who still talks about CMYK printing .. in fact who here
DOES cymk printing?? Here I am sitting with my canon which prints with C,
M, Y, lC, lM, K, G, and R !! The Epson 7600's use C,M,Y,K,lK,lM,lC) 4
colour printing is only done through print services with industrial print
presses. Funny thing though, many graphic designers still work in cmyk then
print through 5,6 or more ink printers, not realising the RIP *still* has to
convert the image from CMYK to the appropriate ink sets for the printer (and
they amy as well be working in RGB ;-)

k