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Applications => Adobe Photoshop => Topic started by: frailer on October 29, 2012, 06:04:27 PM

Title: Sticky 4-col to Gray conversion
Post by: frailer on October 29, 2012, 06:04:27 PM
We get these mono pages regularly, with odd 4 col (mono) pics, mixed in with the (correct) Gray ones. I can crack the pic out of Acrobat 10, convert to Gray in PhSh CS6 (v13), and it saves back in. My compadre, same route... won't 'take' to Grayscale. We have checked Color Settings between both PhShops,  ---> aligned. Still no dice.
Thoughts? If she uses Acrobat 10, and PhSh CS5.1, does it OK, so must be PhSh 6.   :undecided:
Title: Re: Sticky 4-col to Gray conversion
Post by: Joe on October 29, 2012, 06:06:48 PM
Same exact file?
Title: Re: Sticky 4-col to Gray conversion
Post by: frailer on October 29, 2012, 06:22:13 PM
Quote from: Joe on October 29, 2012, 06:06:48 PMSame exact file?

   :homer:  Meant to put a link up. It's only 2MB

http://www.sendspace.com/file/43mujx (http://www.sendspace.com/file/43mujx)

Yep, same file.
Title: Re: Sticky 4-col to Gray conversion
Post by: Joe on October 29, 2012, 06:46:03 PM
Works for me. Acro X and PS CS6.
Title: Re: Sticky 4-col to Gray conversion
Post by: frailer on October 29, 2012, 06:54:07 PM
Dump plist time?   :undecided:
Title: Re: Sticky 4-col to Gray conversion
Post by: Diddler on October 29, 2012, 07:00:59 PM
I just ran a test in XMF PreFlight Action Lists. "Convert to Greyscale". Worked fine. Maybe no need for PhSh.
Title: Re: Sticky 4-col to Gray conversion
Post by: Joe on October 29, 2012, 07:50:01 PM
Quote from: frailer on October 29, 2012, 06:54:07 PMDump plist time?   :undecided:

Make sure Photoshop is fully updated by the Adobe Gods. We had an issue of Photoshop CS6 losing the image scaling in the PDF when saved out of Photoshop when we first installed CS6. The affected machines were not fully updated. Updating it fixed the issue.
Title: Re: Sticky 4-col to Gray conversion
Post by: frailer on October 29, 2012, 09:02:39 PM
Joe, yes, shall check that. Diddler, yep, another way to skin the cat.
Title: Re: Sticky 4-col to Gray conversion
Post by: frailer on October 29, 2012, 10:33:38 PM
Updates done. Compañera retried crack jpeg>grayscale in PhSh CS6> save back in, save on PDF... worked.   :cheesy:  Updates it was...
Title: Re: Sticky 4-col to Gray conversion
Post by: Diddler on October 30, 2012, 12:13:10 AM
Quote from: frailer on October 29, 2012, 09:02:39 PMJoe, yes, shall check that. Diddler, yep, another way to skin the cat.

just thinking outloud here, without doing tests but . . . What if you remapped and merged the CMY to K in the new ink mapping feature in V5. Only problems might be angles and ink %. Im almost out of here for the day but will run some tests tonight and plate in the morning to see if it works. Also will test greyscale EAL on individual pages/sections.
Title: Re: Sticky 4-col to Gray conversion
Post by: frailer on October 30, 2012, 03:51:44 AM
Yep, if the EALs can't be run on a page-by-page basis, definitely a feature request. Can't imagine it would be too hard. I'm not a programmer, but surely a few lines of code pointing to a selected page, rather than globally on the Reading Order list.
We'll start a lobby group, Diddler.   :evil:
Title: Re: Sticky 4-col to Gray conversion
Post by: Joe on October 30, 2012, 07:07:28 AM
Quote from: frailer on October 29, 2012, 10:33:38 PMUpdates done. Compañera retried crack jpeg>grayscale in PhSh CS6> save back in, save on PDF... worked.   :cheesy:  Updates it was...

Moral of the story....keep your updates updated.
Title: Re: Sticky 4-col to Gray conversion
Post by: Possum on October 30, 2012, 07:21:33 AM
If you've got a long document, it may not be a good idea to rely on that grayscale conversion in Acrobat. I've had booklets that still had some pages RIP four plates on some graphics after conversion, so I had to go back and do the Photoshop thing anyway. It's not foolproof, especially when you get files from those pesky office programs.
Title: Re: Sticky 4-col to Gray conversion
Post by: frailer on October 30, 2012, 02:09:01 PM
Duly cautioned, Possum. I sometimes wonder whether doing a "Save As..." helps, in that regard; as in, a full file re-write.
Title: Re: Sticky 4-col to Gray conversion
Post by: mattbeals on November 01, 2012, 11:46:41 PM
Quote from: Joe on October 30, 2012, 07:07:28 AM
Quote from: frailer on October 29, 2012, 10:33:38 PMUpdates done. Compañera retried crack jpeg>grayscale in PhSh CS6> save back in, save on PDF... worked.   :cheesy:  Updates it was...

Moral of the story....keep your updates updated.

EAL's can be run on an individual page. Unless you are referring to a different environment executing the action list.
Title: Re: Sticky 4-col to Gray conversion
Post by: Joe on November 01, 2012, 11:51:20 PM
It was a Photoshop issue Matt. Photoshop wasn't saving the corrected image back into the PDF.
Title: Re: Sticky 4-col to Gray conversion
Post by: swampymarsh on October 19, 2014, 05:47:54 AM
Quote from: Joe on November 01, 2012, 11:51:20 PMIt was a Photoshop issue Matt. Photoshop wasn't saving the corrected image back into the PDF.

I've seen that too. Been burnt once too often. Now I always duplicate the final touchup image into a new temp file, then save and close the touchup image. If it fails to update in Acrobat Pro, I then use the touchup again and this time copy/paste the duplicate image over it again and save. It then usually updates. You know how it goes, the image will NOT update when you have done a lot of edits and you don't have a duped version for safety.
Title: Re: Sticky 4-col to Gray conversion
Post by: Made in Taiwan on October 19, 2014, 05:19:51 PM
Ran into the same issue before. Picture converted to greyscale, saved, but it didn't update in Acrobat. So I did the conversion again, but this time saved it as a new file, and then imported it into Acrobat and placed it right on top of the original picture.

Need to be careful though. I don't know why, but during the conversion in Photoshop the picture got resized, it was more narrow than before. The height was still OK.