Overprint option

Hi,
Is there any option available to set overprint for selected frame?
We have encountered a problem in the overlayered image frame on the tinted background.
In output-preview mode in PDF shows knockout result for the overlayered image frame.
SS

You seem to be talking about an image (like a colour photo?) within the frame and wanting the background tint to show through the image. In that case, no, there is no way to overprint the photo, you use a blend mode. If you don't want the background tint showing through the photo, then off course it is going to knock out the background.
But this is just a shot in the dark. Besides not knowing whether you are referring to frame attributes or content, you don't say whether the background is spot or process, or whether you're working in RGB. I also wonder about your reference to Acrobat's output-preview, if that is not the same as InDesign's Separation Preview you must be changing the colour space at export.

Similar Messages

Rasterization issues with overprint option with AI CS5(only)

Hello
This issue occured only with AI CS5.
I need to export several times a document into a png file. My document contains objects with the overprint option activated.
So I decided to make an action. The action runs well. But if I quit Illustrator and reopen it, the script doesn't run well anymore.
The overprint flag is ignored and moreover when I try the rasterize command from the menu I have the same result.
Can we hope a correction for this issue ?
Notice : The default rasterization action (Rasterize selection) provided with Illustrator doesn't work. I have the following message "The object Rasterize" is not currently available."
Normally this message occurs when there are no selected objects in the document but in this case I select the object.
Thanks

I know that, we are working with files for printing industry. We have documents with pantones and overprinting areas.
We want to have an image file which can simulate the overprinting effect. This file is then applied to a 3D object. The 3D viewer cannot read PDF files or AI files that why we chose the png format.
The format is not really important.
The issue I mentioned occurs before exporting into an image file. When Illustrator converts the artwork in a raster art object, it skips the overprinting effect.
The problem seems to come from the action (script) after quiting and reopening Illustrator and only CS5 is affected by this problem on Windows and MacOS X

White overprint - Why does it exist?

Hello!
Can anyone give me academic answers to the following questions:
1. Why are white objects allowed to overprint in Illustrator?
2. Is there any situation in which the only way to achieve a desired look is with a white object set to overprint?
3. Why wouldn't you want Overprint Preview on pretty much all the time?
I'm a prepress technician at a label printing company, and so these questions are obvious from a printing point of view. We have a big customer whose art department is constantly sending us files with overprinted white copy, and it'll disappear unless we catch it (often, the copy was black on the previous version of the art, and the customer's art dept. changed it to white without unchecking the Overprint option). Like many, I worked in Freehand many years ago and remember it disallowing overprint on white objects.
I'm figuring that some good answers will come from outside of the print spectrum, but maybe from within as well. Thanks in advance!

Actually, the first part of the post by Teri,
The only practical use of overprint would be setting a SPOT white ink to overprint, such as one would use in silkscreening.
was merely a repetition of the previous post by John, then followed by:
Not true. In Illustrator 8, we made it impossible to set process white to overprint, and restored the ability in Illustrator 9, mainly at the request of packaging customers like Coca-Cola and Mattel.
The main application is when making an object blend that is meant to go from white to some process color, and then overprinting that blend onto a colored background. If you can't set the white to overprint, it will caused unwanted knockout of the substrate color.
In AI 8, customers had to work around this problem by applying a very small amount of any process color channel that existed in the object being blended to to the nominally white object, so that the blend was between, say 1% cyan and 1% black to 100% cyan and 50% black, instead of from white. They resented having to do this, especially since they had files made in earlier versions of Illustrator that had to be modified in order to print correctly.
Apart from that, the discussion went on, about the continued justification in new(er) versions.

I want to overprint - not knockout

I have been sent several InDesign Files with graphics that are set to knock out.
We want the imported Ilustrator graphic to overprint.
Black over a Light Green (SPOT COLORS)
I realize I can open the Illustrations sent to me and set them up individually
But was wondering if there was a work around - Straight from InDesign?
Is it a trap preset? If so what are they.
The Overprint option is not allowing me to select it at this point.

That's what I thought. - That was quick! any solutions for…
Same project - But this time there is another twist.
We have 1 Spot Color in the entire back ground (Green) with Black Font.
Problem - The Designer used Helvetica Nue Light at 7 Points!
I can't very well knock it out without it actually filling in from the trapp anyhow.
When It overprints prints the green It changes the appearance of the black a bit.
Is there a way to print automatically where that color behind it is slightly screened?
Hopefully making the black appear just black no brown or muddy.

Open a PDF with restricted tools

I heard that there is a lot what can be done with a PDF via scripting (restrictions in the PDF itself, not an extra viewer application) .
What we should like to do in the PDF itself:
- Use Local Fonts (disabled and not possible to enable)
- Formfields allowed
- Digital signatures allowed
- Only the following commenting tools allowed
- Rectangle Tool
- Line Tool
- Overprint option (enabled and not possible to disable)
- Print menu Advanced
- Enable "Simulate overprinting" and not possible to disable
- Printer profile "Same as source (no color management)" and not possible to disable.
- PDF should be compatible with Acrobat 5, 6, 7 and 8 (also for Acrobat Reader)
If this all is possible how can we add the script in the PDF ?

I´m looking for some of this, too. E.g. I want to have a button
in a PDF that toggles the "Overprint" option, I want to read out settings of "Use Local Fonts" and set it ---
Setting Overprint works with a
app.execMenuItem("Overprint");
in Acrobat 7 -- however in Acorbat 8 it fails due to security restrictions ?
Is there a way around this? (trustedFunctions only work on initializing the applications, batch and... )
Regards
Werner Frank

Tints vs. transparency; printing indesign file - so confused now

Hello!
I'm still learning indesign so i'm definitely not a pro. I've been working on an assignment which consists of creating compositions in indesign. The indesign file basically has text, lines and colored areas.
I've just realized that I am only allowed to use a couple of colors and their tints. This whole time i've been using color and working with its transparency. Is that remotely the same thing? I am not sure how to get the exact same color i've produced when working with the transparency of a color as a tint. (I'm not suppose to be using transparency yet... XD) Please help.
Also, once the above is figured out, what is the correct way to export this file as a pdf? Finally, I also need to export all 12 compositions as a 72dpi jpeg to upload online-- how do i do that? The file in indesign is a cmyk file and i'm pretty sure it exports as a cmyk pdf which is okay since i'm printing the pdf. The jpeg part really throws me off though.
So far, this is what i'm 100% sure on:
Indesign:
File> Adobe PDF presets> High Quality Print> give the file a name and save
then
this is where i get confused - do I changed the standard options and compability options as well? what about the compression? i've basically printed so many variations of the project playing with the above (from what i've read) and have reached a point in which i'm no longer sure what the correct colors of my file are once exported as a pdf.
Please help me. Thank you in advance!!!
(forgot to mention i'm working with indesign CS5.5 and adobe acrobat pro x)

Hello!
Thank you for your kind and helpful replies. I was away celebrating Thanksgiving. Hope everyone had a good Thanksgiving, rest of the week!
@ Peter
Thank you for your explanation of what offset printing is. It really helped me visualize the process. Is this something used only when it comes to printing large quantities of work then? (I'm assuming large files as well)
@ Dov
Thanks for explaining your answer in simpler terms. I now understand what you meant. If i'm understanding things correctly, it's not good to use tints over other colors/objects yet it's alright to use them when they are on white backgrounds. Also, it's best not to use tints when it comes to overprinting; transparency is best.
@ Will
Thanks for your information! I'm a bit confused now to be honest; pdfx-4 is not recommended when overprinting with transparency?
@ Dov
If I'm understanding correctly, what you and Will are saying is that it's best not to import pdfs that are saved as pdfx-4? I really enjoyed reading all the extra info. It's all quite exciting! (trying to wrap my head around this)
Thanks guys!!
I decided to export the indesing file under Adobe Pdf Presets> High Quality Print. I didn't change any of the standard settings. With regards to the jpgs, I used the advice recommended - File > Export, choose JPEG, 72 ppi. I do have one large question though...
This is what one of the compositions looks like in indesign:
This is what it looks like when I view it under View> Proof Colors in Indesign:
This is what it looks like when I export it as a Hight Quality Print pdf:
This is what the jpeg image looks like when I export it under the following settings:
And this is what the jpeg image looks like when I export it under these settings:
Is it correct of me to use the exported jpegs with the simulate overprint option selected even though i'm only digital printing this pdf file? The color of the jpeg resenmbles the most of the pdf color. Thus... is it alright to do that?
Thank you

White background is shown when a psd file is inserted in illustrator

A psd file with transparent background is inserted into a AI file, I found that a white background is shown when printing. Afterwards, I checked this problem occurs on true postscript printer only. All other type of printers are not affect.What's the problem on it?

Check the overprint options. I think we had a proper post in the windows AI forum last week regarding a similar issue with AI's bitmap effects (drop shadow, I believe), so go looking for it.
Mylenium

Trouble printing a gradient in Illustrator CS3

Hi Guys,
I'm having trouble printing a gradient via color seperation on a ecrm MAKO 36 image setter...
I've uploaded a file. The top light blue border(gradient) will not print. If I take the gradient off it will seperate with no problems.
I've tried using the compatible gradient & mesh printer settings but it doesn't make any difference.
Any help would be greatly appreciated.
Thanks,
Curtis

I looked at the file and found strange things about it. It has two groups of object that only have one object or path in the group and in each case the object has clipping path that does absolutely nothing I would eliminate the clipping by selecting them in the layers panel and deleting using the trash can in the layers panel.
I would select all the art and in the attributes panel I would make the overprint options for both Fills and strokes set as uncheck, which is what I thin is causing the problem as there is no reason for an overprint.

Differences between PDF (Interactive) and PDF (Print)

What are the main differences between PDF (Interactive) and PDF (Print)?
Now it seems to me that PDF (Interactive) is limited version of PDF (Print).
Any links to read about this topic?
Thank you in advance,
Mykolas

There's actually quite a few differences between (Interactive) and (Print).
Here's a list of pointers written by Michael Ninness (previous product manager of InDesign and now working at Lynda.com) http://www.lynda.com/michaelninness
I just got premission from him to post this (Thanks Michael!):
Here is some info for you regarding what choices are being made under the hood when you choose File > Export > Adobe PDF (Interactive).
Things that just happen or are included, with no choice in the dialog box:
Hyperlinks, Bookmarks, Fast Web view, Compress Text and Line Art, Crop Image Data to Frames.
Things that are not included, with no choice in the dialog box:
Visible Guides/Grids, Hidden and Non-Printing Layers, Hidden and Non-Printing Objects, Marks & Bleeds, No Ink Manager or Simulate Overprint options.
Things that you can choose:
Security Settings, Embed Page Thumbnails, Create Tagged PDF, Create Acrobat Layers, Initial View, Initial Layout, Open in Full Screen Mode, Page Transitions, Image compression and resolution.
Other:
Fonts: Subset 100%
Color Conversion: Destination
Destination: sRGB
Profile Inclusion Policy: Include Destination Profile
Transparency Flattener: No Flattening
And lastly, Compatibility is set to Acrobat 9 (PDF 1.7). This last point is important, and largely explains the main reason we split Interactive PDF out as a separate export choice from Print PDF. When you export an interactive PDF from CS5, included media is now written out to the Rich Media Annotation Layer, which means this content is played back via the embedded Flash Player within Acrobat Pro 9 or Adobe Reader 9 or higher. In previous versions, this content was written out to the Screen Annotation Layer, which meant this content was played back via QuickTime. This has been a long-standing headache for end users as playback across platforms was often inconsistent, would frequently break when Apple updated QuickTime, etc.
Lastly, if you want to include rich media in your interactive PDFs (SWFs, audio and video), the only formats supported if you want to target Adobe PDF (Interactive) are MP3 for audio and FLV for video. Other file formats will need to be converted to these formats before you export to Interactive PDF. For video files, you’ll be able to convert to FLV with Adobe Media Encoder. For audio files, you can use any number for free audio conversion tools, including iTunes.
Harbs

Export as jpg problem

I have some serif type from which I've created outlines. I'm saving this doc as a pdf and also exporting it as a jpg so others can place it in different types of documents. I want to make a second version of the graphic by reversing the type onto a dark bkgrd. The pdf looks and prints fine but in the jpg the type doesn't appear. (All the nonserif as well as italic serif type has no problem). So I thought I'd put a white stroke around the problem bit of type. The white stroke appears in the jpg but it looks as if it's a white stroke around dark type, instead of a white stroke around white type, which is how it appears in Illustrator and Acrobat, and prints out as such. But once it goes to jpg, this problem occurs. I messed with the "knockout group" control in the transparency palette but didn't help. It's really got me stumped. Can anyone help?

Yes you have the white set to overprint i the attributes panel select the letter and uncheck the option to overprint the white.
This would only be good if there was a transparency setting of some kind for the white or for an effect using the white as shading device like a glow.
You'll get this without the overprint option checked

Drop Shadows problem in Acrobat Reader & Professional

Hi all,
We have a problem with Acrobat, when we open an pdf which has drop shadow over a background seems to be white patch around the dropshadow.
Attempt done:
First Attempt: Opened the PDF in acrobat professional 7, when we switch on overprint option this seems to be good but when I print I got the white patch around the dropshadow.
Second Attempt: Opened the PDF in Acrobat Reader 9.0, it has white patch and print has white patch.
Third Attempt: Opened the PDF in Acrobat Professional 8, when we switch on overprint option looks fine and print fine.
Client want the pdf should be compatible in Acrobat Reader.
Note: This PDF was generated with 3b2 Software we cannot switch over the software to Indesign.
Any suggestion related to this issue.
Kaviya

The overprint settings would need to be set in the source file and preserved when generating the pdf. Based on the information from the uploaded file, you might try Arbortext Advanced Print Publisher support.

CS2 Transparency

I'm fairly green when it comes to graphic design, and even moreso regarding transparency. So, please forgive me if what I'm about to ask has been discussed ad nauseum, or is a particularly stupid question...
A piece I'm working on at the moment (using InDesign CS2) uses 2 Pantone colours. I want to be able to print objects in one of the colours (say yellow) on top of a background of the other colour (say blue). Further, I want my yellow objects to have varying degrees of transparency, so that some of them almost blend in with the blue background.
My question is this. If I specify that one of the yellow objects has an opacity of only 10%, does this mean that the yellow ink will be printed less heavily (ie. less dots of ink) on top of the blue background, to give a slightly green tinge to the blue colour? Instead, will the transparent yellow area knock a hole out of the blue, leaving me a very pale yellow area where the transparent yellow object sits?
Another question. My understanding of tints of a Pantone colour is that, on white paper, the tint is created by simply printing the full strength ink less heavily - leading to more white paper showing through to create the lighter colour. However, isn't this just the same as transparency? On the other hand, how are various tints of a Pantone colour handled if printing on top of the blue background? Does each tint need to be mixed separately and treated as a separate colour?
Just finally, I've heard that exported PDFs should be created using the PDF/X-1a standard to avoid transparency problems. Can someone confirm that this is correct, and perhaps explain why this is needed?
Thanks for any help you can provide.
Cheers,
Steven

I would approach it the same way as Scott to be honest. By using the overprint option you can specify which areas you'd like to blend and which you'd like to be backed out, This should allow you to give the appearance of a 3 colour job, whilst only printing two.

CS5 TEXT TRAPPING options? Knockout? 0.44? Overprint?

Is there no option in InDesign CS5 for the text trapping?
How can I be sure that the text I want to be knockout is in fact set to knockout? and likewise for text to be overprinted?
Am I to assume that everything is automatic and I have to trust InDesign to decide it for me?
I will be taking a project to the printers soon, and I NEED to be sure for myself that all the overprint and knockout text is set correctly, but I can't find the settings anywhere.
Help, guidance and anything else very much appreciated.

le_mac_man wrote:
Thanks for your reply.
So, are you saying that every other colour except black will knockout automatically?
In the "attributes" panel the options are:
Overprint Fill
Overprint Stroke
Nonprinting
Overprint Gap
Why is there not an option, "knockout Fill" etc... or is it just given that if the overprint fill box is not ticked then that means it will knockout?
There is no option for Knockout because that's the default condition, and the only possibility if overprint isn't selected. You can't "sort of" or half overprint any more than you can "sort of" print red using black ink.

How to disable the option of "Overprint [Black] Swatch at 100%" in Indesign by Java Scripting

Hi Guys,
We have a requirement where we have to disable the option of "Overprint [Black] Swatch at 100%" in Indesign. This option is available when we go to Indesign ---> Preferences----> Appearance of Black.
Also, if a user opens a file, in which the swatch is already enabled, then it should prompt him for disabling.
I am aware of doing it through AppleScripting, however I would be needing it on both mac as well as Windows Workstations and hence as such I require a JavaScript here.
I am novice to JavaScripting and any help would be highly appreciated.
Thanks Everyone,
Abhishek

Thanks for your response!!
However, currently this action gets applied to only active documents.
Can we keep the status disabled after we close the indesign document. We need to have it disabled in the preferences panel.
Thanks again for your help !!
Regards,
Abhishek

How to disable the option of "Overprint [Black] Swatch at 100%" in Indesign by Apple Scripting

Hi Friends,
I am new to Indesign Scripting by Apple Script. As a beginner, I am trying to do some basic scripting in Indesign by Apple Script.
My aim is to disable the option of "Overprint [Black] Swatch at 100%" in Indesign. This option is available when we go to Indesign ---> Preferences----> Appearance of Black.
Also, if a user opens a file, in which the swatch is already enabled, then it should prompt him for disabling.
I can make a display dialog in AppleScript. But, I am bit unsure as how can I go ahead and disable this option. I tried this below script:
tell application "Adobe InDesign CS4"
      tell every layout window to set overprint preview to false
end tell
However, it is changing the view option to overprint preview.
Appreciate your help and suggestions!
Thanks,
Abhishek

tell application "Adobe InDesign CS5"
          tell the active document
                    set overprint black of document preferences to false
          end tell
end tell

Overprint option

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