Exporting as pdf changes all 100k text to 90% blac

Discuss QuarkXPress print functionality and printing workflows

Exporting as pdf changes all 100k text to 90% blac

Postby sliptrt » 20 Dec 2014, 14:52

I am creating pdfs of books that have been layed-out in Quark. The Quark file is grayscale. I doesn't matter what export profile I use, when I open the pdf in Photoshop, the text is no longer 100k, but has become a tint of black, somewhere in the 90% to 93% k range. I only learned this because in the books that I was getting printed the text was washed out. On examination with a loupe, I could see that the texr had a dot pattern—it had been screened down from 100k. Images look fine, the problem seems only to be with the text.
sliptrt
 
Posts: 14
Joined: 23 Jun 2004, 14:11

Re: Exporting as pdf changes all 100k text to 90% blac

Postby MikeWenzloff » 20 Dec 2014, 15:10

Don't check it in PS. Check it in Acrobat.

Any 100% black I export, text included, is 100% black.

Another thing, if you are going to be always exporting these as grayscale, I would recomend creating a PDF output style for it if you have not already. I based the below on the PDF/X-1a profile.

capture-002451.png
capture-002451.png (11.25 KiB) Viewed 7559 times


Which in turn only produces a Black plate and ensures the 100% black where it belongs:

capture-002450.png
capture-002450.png (106.57 KiB) Viewed 7559 times


Mike
MikeWenzloff
 
Posts: 1120
Joined: 05 Jun 2013, 12:55

Re: Exporting as pdf changes all 100k text to 90% blac

Postby sliptrt » 20 Dec 2014, 16:11

Thanks for your suggestions, Mike!

As I said, I only examined the pdf in PS after it printed incorrectly (and the printer said the problem was with the pdf).

As an aside, this is the 20th book I am outputting and they all have this problem.

And yes, I do base the pdf on the PDF/X-1a profile.

This statement seems to be incorrect:
"Which in turn only produces a Black plate and ensures the 100% black where it belongs"
as established empirically. My pdfs are not outputting the text correctly.
sliptrt
 
Posts: 14
Joined: 23 Jun 2004, 14:11

Re: Exporting as pdf changes all 100k text to 90% blac

Postby MikeWenzloff » 20 Dec 2014, 16:29

Again, check the PDF in acrobat. If the text is 100% in acrobat, the screening is happening at the print service. If the pdf is screened to say 90% then the color profile used in a PDF/X-1a is the fault.

It's all it can be. Assuming 100% K is being used.
MikeWenzloff
 
Posts: 1120
Joined: 05 Jun 2013, 12:55

Re: Exporting as pdf changes all 100k text to 90% blac

Postby sliptrt » 20 Dec 2014, 16:53

How do I check the text in Acrobat?
sliptrt
 
Posts: 14
Joined: 23 Jun 2004, 14:11

Re: Exporting as pdf changes all 100k text to 90% blac

Postby MikeWenzloff » 20 Dec 2014, 17:32

Depending upon your Acrobat version, there will either be a View menu item called Tools, or perhaps a Tools button on the right side, both, etc.

Print Production is what you are after. From that, open the Output Preview dialog. Move your mouse over an object and will will tell you the color component percentages.

Because I used a modified Quark Grayscale profile for the screen shot below, notice that this dialog shows the output profile at the top as well. I have circled the cursor over some text.

Mike

capture-002452.png
capture-002452.png (46.56 KiB) Viewed 7545 times
MikeWenzloff
 
Posts: 1120
Joined: 05 Jun 2013, 12:55

Re: Exporting as pdf changes all 100k text to 90% blac

Postby sliptrt » 20 Dec 2014, 17:54

Thank you!

I really appreciate your time helping me with my problem.

Well, the text is 90% in Acrobat.

Since my text is definitely 100k in Q, I have no idea why it's exporting to pdf as 90k. I'm guessing it has soimething to do with Q color managemnet, which has been nightmarish and overcomplicated for me since about Q4.
sliptrt
 
Posts: 14
Joined: 23 Jun 2004, 14:11

Re: Exporting as pdf changes all 100k text to 90% blac

Postby MikeWenzloff » 20 Dec 2014, 18:19

Can you upload a sample document? The stuff having to do with color (at least the info) will be embedded, I believe. As well, if you could make a PDF from that sample and ZIP them both together for the upload here that's a quick way to see the output profile being used when it hits the PDF.

Mike
MikeWenzloff
 
Posts: 1120
Joined: 05 Jun 2013, 12:55

Re: Exporting as pdf changes all 100k text to 90% blac

Postby sliptrt » 20 Dec 2014, 19:01

gray test.zip
(125.09 KiB) Downloaded 408 times
Mike, you are too kind!

Now it gets weird!

I have attached test5 (which shows 90K and test6 which shows 100k, and the Q page.

To create test6, I opened my Q document and created a new layout within the document, sized the same as my original layout. Then I went back to my original layout and copied the text box. I then went to my new layout and pasted the text box.

The pdf entitled test5 is from the original layout. Its blacks are 90k.
The pdf entitled test6 is from the new, one-page layout. Its blacks are 100k.

I just checked again. There are no setting that could I have changed when creating a new layout withing a document, so I have no idea why the two pdfs are different.
sliptrt
 
Posts: 14
Joined: 23 Jun 2004, 14:11

Re: Exporting as pdf changes all 100k text to 90% blac

Postby MikeWenzloff » 20 Dec 2014, 20:37

Hah--I'm not certain about the kind part, but I do love a mystery!

The test5 file is using the Quark Generic gray.
The test6 file is likely using the stock PDF/X-1a profile and the output condition uses the US Web Coated (SWOP) v2 profile. Which is probably why the 100% K held true.

The oldest version of Q I have installed is version 9.5.4.1. Using either PDF/X-1a or my grayscale profile as shown above, all I can get is the 100% K. As well, if all I do is choose to export and open the Options from the export dialog and choose the Gray 100%, the 100% K holds.

However, if I choose the plain Grayscale, I'll get the 90% black. The reason, I believe, is that it it accounting for 10% dot gain. Might be semi-useful for newsprint, but not for typical book production.

Because I don't have an earlier version than the 9 series, I cannot check to see if the output styles are the same, but if I recall, they've not changed in several versions.

The short of it is this. Only use the Grayscale 100% output style to make your PDF output profile, or make sure to choose it in the PDF Export Options.

I prefer to make specific PDF output profiles. If you also have one to use on the books, make sure to edit them to choose the Grayscale 100% output. Save them, choose them from the Export PDF window.

Best regards, Mike
MikeWenzloff
 
Posts: 1120
Joined: 05 Jun 2013, 12:55

Next

Return to QuarkXPress 8, 9 & 10: Output (Printing & PDF Export)

Who is online

Users browsing this forum: No registered users and 1 guest

cron