Converting RGB to CMYK while preserving the same colors?

Question

Hello everyone!,

it's all in the title... ;)

Actually, I'm going to receive illustrations that I will need to scan in high resolution, which will be used for layout and printing. So my file needs to be in CMYK.
I absolutely need to achieve the same color rendering as my original illustrations.
Could you please let me know how to ensure they are preserved when converting from RGB to CMYK? And what would be the best method?...

I hope you can enlighten me... :)

Vénus555.

contrariness · Accepted Answer

It's not possible... and it needs to be explained to the client...

The RGB color space is larger than the CMYK one...

It is not possible to simulate the entire RGB color spectrum with 4 inks... a choice has to be made... hence the retouching to enhance or accentuate the contrasts and areas of the image...

For luxury work, we can print in hexachrome... (often for packaging), and in this case, we enlarge the CMYK color space. But it's special and not really the same price!

Vénus555 · Answer

Hello Contrariness! ... always reliable!... ;)  You help me a lot, once again! Thank you so much!!! :)  Have a very good day.  Venus555.

contrariness · Answer

Between RGB and printing in CMYK, there will automatically be a difference in printing...

However, it is also important to consider that initially, one must look at their images on a calibrated screen. Without calibration, you have no idea what it will turn out like... it corresponds to nothing.

It is always possible to work with RGB images in InDesign and convert them at the last moment during the creation of the PDF file. Just indicate it in the "Color" tab and specify the correct conversion profile. If the CS Suite has been synchronized, the profiles existing in Photoshop are also available in InDesign...
But personally, I don't like this method of working because if the document is intended to be printed in CMYK (color separation), there is no point in not importing the images and creating the text composition directly in CMYK from the start. At least we know where we are going by looking at what it looks like in Photoshop. (hence the importance of a calibrated screen!!)

Distillation is the process that transforms a print file into a PDF file. This comes from the name given by Adobe to the software that performs the operation (Adobe Acrobat Distiller).

PostScript is the ancestor of PDF. It is a programming language that describes, for example, the content of a page intended to be printed (PS file) or an image, a vector object (EPS file). Describing the page with this language allows it to be printed on any PostScript printer.

Vénus555 · Answer

Thank you for the speed and clarity of your response! :)

I will take note of that.
Actually, I would prefer to prepare my layouts (compositions, gradients, masks, etc.) in Photoshop.
In this case, if I understand correctly, I convert my images to CMYK and place them in my compositions already set to CMYK, then I import my compositions as a single image into InDesign (and then I proceed as you indicated for exporting my PDF from InDesign...)? And once I have imported my compositions into InDesign, I will add the text :)
Is this the right reasoning in your opinion?...

How can I check that my software is synchronized? Is it at the level of the ICC profiles of each software?...

However, I was not aware that I needed to calibrate my screen beforehand. I have never adjusted its settings or synchronized my Adobe Suite. I hope I won't have too many surprises on that front...
Otherwise, how should I proceed? If it’s not too much to ask, of course...

Thank you again a thousand times for your very precious help... :)

Vénus555.

contrariness · Answer

If it's just a poster or a flyer, Illustrator is almost as good, but InDesign, which is a layout software, doesn't embed the images but uses previews, which means that with large images, the responsiveness of the software when moving elements is much quicker… that's the purpose of layout software!

Of course, depending on your document, it's completely possible to create elements in Photoshop, Illustrator, or other software and then import them into InDesign for layout; that's exactly what it's for! For your images, if they come from Photoshop, leave them in PSD format, as it's the native format and it will avoid the destructive compression of JPG.

To calibrate a screen, you need a probe. The probe will generate a profile that will be used by the monitor driver to correct the display.

You can do it in a very empirical way by adjusting the settings on the monitor (color, contrast, etc.)
A site to test your screen: https://photographe-de-mode.com/calibration-ecran

Vénus555 · Answer

Sure, thank you again so much to you Contrariness!, if I understood correctly I can proceed like this, it’s perfect... ;)
I’m off to check the calibration of my screen using this link... :)

THANK YOU THANK YOU THANK YOU!!! :)

Have a great weekend!!! ;)
Venus555.

Converting RGB to CMYK while preserving the same colors?

6 réponses

Samsung j5 unable to answer

Scam of the suvedene highway

Minecraft restore the cursor and the bar.

My ps3 keeps shutting down on its own...

Samsung series 4 led tv logo display...

How to enable bluetooth on a samsung tv?

Ctrl key issue

[metin2] sura ...

Freebox tv locked step 2 or network

Error 46 (brother dcp-150c) cleaning impossible