Spot colour blues

Hi Guys (and Gal's)
I have a little problem which is slowly turning into a major irritation. What happens is that I create spot colours, say one for Silver and one for Metallic board. The relevant objects and elements are "coloured" as required, the file saved and all the colours are okay / correct / in spot.
Yet when I open the files later, the spots magically convert to process. Not even global process colours, just the plain old colour makeup in process that
I chose for the colour. (Which was definitely a spot when I saved it). For some reason this issue happens mostly to light grey's or colours intended to
be "metallic".
And what blows my mind even more is that the one file where the metallic board changes from spot to process is a file that was made from another file
of a variant that uses the same design only with a different colour in one of the logos. For instance, FILE A would be the file I used, metallic board, blue spot,
silver text etc. saves fine, opens fine... the spots stay spot colours. Then I copy the file to another "variant" folder, change the blue spot to green, save the
file, the spots are spot colours. But once I open the file again the metallic has turned into 0c 0m 0y 25k. Yet the "blue" one is still as I saved it.
Have any of you guys come across something like this before?
Regards
JC

HELLO
i don't understand very well,maybe is better that you try again,try to see if working your pictures in filter and gone to light effect ,open this to material
effect,try to move the slider on the left and move to plastic direction...maybe is only a little light adjustment issue.(ps4 for this is the same of ps5).
alessandra minotti

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Colour management of spot colour channels

Hello
I have some single layer images using cmyk (black only) + Pantone Process Blue U that will eventually be printed on a sheetfed offset press. A ballpark estimate would suffice for this low budget book, so I thought I'd give soft proofing a try. I'm therefore interested in understanding Photoshop's implementation of colour management for spot colour channels so as to have a less vague idea of the approximations this workflow involves.
Moreover, I'm stuck on exporting to pdf to let the client evaluate my conversions of the original rgb scans. Photoshop seems to layer an Euroscale Uncoated v2 overprinting image on top of a spot coloured image whose alternate colour space is "Calibrated RGB". What baffles me is that the pdfs display consistently in Acrobat 8 and 9 but rather differently from the Photoshop document.
Here come my questions:
1) Am I right in saying that these programs still don't support colour profiles involving spots? If so, are Adobe people willing to comment on the relevant intricacies?
2) Which colour profiles and colour conversions do Photoshop and Acrobat use to display such documents?
3) Which software tools will allow me to convert the Photoshop documents to an output profile for hard proofing?
4) Short of alternatives, when only K is needed and as long as each spot colour bears a decent resemblance to a cmy primary, how well will the profiling software deal with a cmyk target printed substituting the inks on press?
Thank you very much for your help.
Giordano

As far as I know …
1) Photoshop uses the Spot setting from your Color Settings (Edit – Color Settings) to display spot channels (and one can use gray-profiles or the K-channel of CMYK-profiles for that); the Solidity one can set manually, but one should bear in mind that even a 100% solid spot channel does not knock out the process channels.
As for the actual physical properties of the color and its mixing with the other colors I’m afraid Photoshop produces a pretty rough simulation – profiles for more than four colors are considerably more complicated and would, if I’m not mistaken, preclude much of Photoshop’s functionality.
2) If you pass unprofiled Files between programs they will be displayed using the programs’ respective Color Settings.
And your screen profile will be employed in the process naturally … but you might want to read up on color management if you want to know more about all that.
As to why the display differs between Acrobat and Photoshop it would appear that Acrobat use the RGB-setting for displaying spots and not an extra setting like Photoshop.
3) Photoshop is capable of separating files – but I may not understand what you’re driving at.
4) Epson-proofers using the latest generation of inks for example have a fairly wide gamut and should be able to simulate a lot of Pantone colors, so you might want to contact your provider to make sure if such a workaround is necessary at all.

How do I use mono and 1 spot colour for print, where the spot colour applies to an element, rather than the whole image?

I am struggling to work with spot colours, using scanned images edited in Photoshop for use in InDesign to then go to print.
We print to two plates to save money for our publication. In this case magenta and black.
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I have also tried using channels, one grayscale and one magenta, but using the file types either InDesign bugs or it comes out in mono.
It isn't possible to recreate the logo in InDesign, if only it was this easy...
If someones already discussed this, I can't find it, but if someone could point me in the right direction—I'd be very grateful!
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>unfortunately there is very little in the way of documentation
Have you read all of this?
Scintilla Documentation
http://www.scintilla.org/ScintillaDoc.html
>or working examples around
Have you examined this project in detail?
SciTE is a SCIntilla based Text Editor.
http://www.scintilla.org/SciTE.html
SciTE Documentation
http://www.scintilla.org/SciTEDoc.html
- Wayne

Acrobat 8.1.2 crashes when checking/unchecking spot colour channels

Hi there, just wondering if this situation is a bug with Acrobat or an issue with my machine/OSX?
I have created PDFs by distilling and exporting. If I open the resulting PDFs in Acrobat 8.1.2 and open the colour seps panel and turn off colours - particularly spot colours, Acrobat unexpectedly quits. Everytime.
My system is:
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Is anyone else having similar issues?
I'm just off to create a new account to see if it still dioes it.
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Kind Regards
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Thanks Jon,
I've tried both.. trashing pref AND used IDCS3 - created a standard page added some items with spot colours and exported to PDF/X-1a:2001 as you suggested.
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Is it possible to turn off a spot colour

Hello
Probably a dumb question but I will ask anyway. Is it possible to turn off a spot colour in CS4. I can effectively do it by creating a spot white and merging the spot colour I want to delete to the spot white using the ink aliasing. However, this leaves a spot colour in the high res pdf at th end of the job. This then causes a problem as we use an online proofing system which then fails the flightcheck as there is a spot colour in the pdf.
Cheers
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The spot colour is used so that we can perform a find on any text with a fill of the spot colour and delete it. The spot colour is put in for this purpose when the original artwork is created in the US.
Kathlene - I can't believe I didn't spot that! This would work! We could just convert the swatch to 0% cmyk as you suggest. The majority of the pages in the catalogue are on a white background so the pricing would simply disappear resulting in no spot place when pdf's are made. There are some pages on a coloured background but these are very few and the pricing could be deleted manually.
Thanks for the help!
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PDF and Spot Colours

I have a problem with Illustrator CC. I have a file with spot colours in it. I have converted these spot colours to CMYK, but I still cannot save the file as a PDF-X. An error message continues to pop up saying I have spot colours somewhere, but I have no idea where. How do I save the file as a PDF-X?

At first yes, but now no. I had to modify the colours to match some samples I got. And yes the error message reads: Cannot output this document because it contains more than 27 spot colours and uses transparency. Delete some spot colours or convert them to process colours and try again.
The thing is I did that. I got rid of the colours and transparencies I wasn't using for one of the files but I still get the same message.
I'm saving it to a PDF/X-3:2002 but no matter what preset I chose it just doesn't want to work.

I have a 2 x spot colour file in Illustrator CC and need to save it as a PDF for printing in spot colour....

I have a 2 x spot colour file in Illustrator CC and need to save it as a PDF for printing in spot colour, which option do I choose in the 'save as' menu?
and how do I check it?
The overprint panel is open and I can turn off the cmyk ( there are no separations for the cmyk anyway)
Have looked at the tutorials which tell me to print as PDF7 but that utility is disabled and has been for ages.
it is a simple need but can find no simple information so think I must be missing something!
Thanks in advance!

No magic required. You simply save it as PDF-X from AI. If the spot colors are based on correct swatches and tagged accordingly, they will appear as separate inks/ plates in the PDF, which you can verify in the ink manager in Acrobat. That's pretty much all there is to it and the print facility should handle this file correctly.
Mylenium

RGB image coloured to spot colour

We have supplied images (jpeg, tiff, wmf) that are RGB Black & White. I want to be able to place the image in a box and set the colour to a spot colour ie PMS 280.
I can colour them up using Transparency>Lighten having set the background colour of the box. This only works for process colours, not for PMS colours. As soon as you change to a PMS colour the image "disappears". Am I doing something wrong? Is it possible??
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Due to how the customer supplies the files to us and automation involved it has to be done via Indesign.

Not going to happen.
You'll either need to make clear to users of the template that they need to supply the correct form of art or do the conversion yourself. I expect it could be scripted to find these images open them in photoshop, run an action, and return them to ID as grayscale. It probably could be set to run on file open.
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Greetings,
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The cheaper routers, Linksys, D-Link, Seimens home units, and many other no name devices have caused issues of various kinds, and even connectivity.
I have no idea what Starbucks uses, but I always have a good connection, and I go there nearly every morning and get some work done, as well as play.
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Making a PDF with an image that has both spot colour channel and alpha channel

Hi I have a logo that was supplied to us as a PSD it has a transparent background, it also has a pantone colour channel. I have made a alpha channel from the transparent background as well.
The graphic looks fine in InDesign (alpha channel selected in the import options), ie the background is transparent.
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You know that annoying response from support staff? "We cannot replicate your issue". Well....
I created a PSD in CS5, with a bunch of process stuff, then loaded a spot color channel and painted in some pawprints using Pantone 172C:
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Created a new InDesign document in CS5, added a gradient and some text, then placed the PSD. ID understands the PSD has an inbuilt background so there's no need to bother with a dedicated alpha mask:
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Save spot colours in Photoshop for import to Indesign

I'm having problems in Indesign due to using drop shadows in some graphics which are over an image with transparencies. What I think would solve the problem is to remove the transparencies in the image using photoshop and then use that. However, the image has spot colours which is giving me headaches. I haven't found a way of importing the spot colours directly into photoshop from illustrator or whatever - they always seem to get converted to CMYK. However, I have managed to recreate the spot colour in Photoshop as a channel - so the file is CYMK+1spot channel. However, when I try to import the psd file into Indesign I get an error message "The file uses an unsupported colour space...". I have tried exporting as eps but that didn't work either. I have seen various help messages which seem to imply that you can import spot colours from photoshop - can someone suggest what I am doing wrong ? I use CS5.

Besides saclint the image up, which reduces the "effective" resolution, do you have your display performance in ID set to High Quality Display? You are not looking at actual pixels in ID, just a jpeg preview, and that will also make a difference, and any edges which are not truly horizontal or vertical will always have some sort of stair-stepping in a pixel-based of the pixels to approximate the line, and this can become more noticeable whn you zoom in or when you scale upwards.

PDFing Spot Colour Transparencies from Indesign CS2

Hello!,
I think this is a common question, but I can't find a definitive answer. I am trying to PDF a file which has an image and then a spot colour transparency over part of it. When I PDF the file at Press Quality the spot colour transparency is white. When I PDF the file at a lower resolution (Standard size PDF) the transparency is fine.
Is there some way I can resolve this? I need to prepare a Press Quality File. I seem to recall reading or hearing somewhere that Indesign does not deal with spot colour transparency very well. I am currently working in CS2, and am wondering if the issue has been resolved in newer versions of Indesign.
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Pepi

> that Indesign does not deal with spot colour transparency very well
Nonsense.
Just turn on Overprint Preview in Acrobat.

Acrobat CC doesn't show or print spot colours in a Photoshop PDF

When I open a Photoshop PDF, with a spot colour channel, in Acrobat CC 11.0.04, the spot colour doesn't show. But it shows when I click Output Preview (in Print Production). The colour doesn't print either. It also disappears when I convert it into CMYK (by checking the "Convert All Spots to Process" box in Ink Manager). I'm running Acrobat on OSX Mavericks.
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Thank you for your reply.
Indeed, I tried saving a PDF that had the "default appearance", it shows exactly the same. So it looks like it "can't" show the image.
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Having problems with Transparrent Spot Colour gradients Ai CS4

I would like to know how to make the spot colour transparrent on one end of the gradient tool. Have been fiddling with the gradient opacety when the one spot colour is white but I get a "grey" area between the 1st spot colour and 2nd spot colour (being black). I've tried draging the
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Hi Karms...
Try this, use your shape without gradients only fill with the spot color, then open the transparency palette SHIFT+CONTROL+F10. Next select your spot color shape, in the transparency palette you see your shape, then double click alongside your shape, this create a opacity mask, like mask in Photoshop. Next you must set up your mask, usually i use a registration color to set a transparent region and withe to set opacity region, to make a blend you set a registration to withe gradient. You be aware the transparency zone is different to opacity zone.
Pd: Steve I'm, a step back from you! no more phone calls while posting

Having problems with Spot Colour gradients

Hello All,
I have little experience in dealing with spot colours. I'm trying to blend two spot colours for a print job. Unfortunately the spot colour gradient (left image) does not blend like the process colour gradient (right image). Instead they fade to a lighter colour in the center where they meet. I'm sure someone out there can help as I think this is more of a technical issue that I am simply unfamiliar with. Thank you in advance to all comments!
Hugues

Hello, i run into this all the time.
What you can do is actually make one spot color overprint (or darken, or multiply) on top of another one.
that will work,
What I see you have is one spot color at one end and another spot color at the other, where they meet you get the "grey".
The 4/c gradient is a blend of the C<M<Y<K, inks.
I usually rant over the fact that Illustrator does not have an Ink Manager, to make a swatch of 2 (or more ) spotcolors.
As far as color gamut goes, 4/c color printing is so passe, right.
Till Adobe recognizes that printers print with more than the 4/c color space, hexacolor, opaltone, optimized 7, and 8 we just have to improvise.

Spot colour blues

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