I agree with Joe...

The newer versions of Acrobat are more aware of file issues/problems. E.g. You can open a bad file in Acrobat 9 with no error and open the same file in Acrobat X and it tells you there's a font or image problem.

Greg

hmmm, don't know I suppose is the answer, pdf looked ok... pdf pages as tiffs looked ok as normal... 16 images therin...  (all rgb and had been made mono).. 3 corrupted on transmitting to printer... at that stage I didn't check all images on all pages... first pages I looked at were fine, was more interested in the fold/staple positions and cleanliness of print which was ok... printed and delivered...nobody noticed until all were distributed!  (normal)

I just need to not rely on fact that pdf's on screen and a quick glance at first few images isn't thorough enough... my fault, it's like tying shoelaces, you just don't look at every bit as your doing it, I assumed too much, but I've not messed up like that before on 1000's of similar!!

I'll let you know what the preflight guys say!

I am in awe of this whole thread.

I like biscuits

Quote from: bodger on June 11, 2012, 09:30:41 AMhmmm, don't know I suppose is the answer, pdf looked ok... pdf pages as tiffs looked ok as normal... 16 images therin...  (all rgb and had been made mono).. 3 corrupted on transmitting to printer... at that stage I didn't check all images on all pages... first pages I looked at were fine, was more interested in the fold/staple positions and cleanliness of print which was ok... printed and delivered...nobody noticed until all were distributed!  (normal)

I just need to not rely on fact that pdf's on screen and a quick glance at first few images isn't thorough enough... my fault, it's like tying shoelaces, you just don't look at every bit as your doing it, I assumed too much, but I've not messed up like that before on 1000's of similar!!

I'll let you know what the preflight guys say!

OK, then it is not a transparency issue as once you convert to tiff there is no longer any transparency. (tiffs are OK, right?) I would point fingers at the RIP of the device you are printing to from Quark. (Network, disk, etc...)

Quote from: DigitalCrapShoveler on June 11, 2012, 09:42:22 AMI am in awe of this whole thread.

It's prepress, man.

Late to the party here.

Maybe the RIP can't handle the compression on the file or the preview.

From Adobe. "Monochrome Specifies a compression format. CCITTG4 is the default and generally produces the smallest file size. ZIP compression also produces a small file.
Note: Some applications cannot open TIFF files that are saved with JPEG or ZIP compression. In these cases, LZW compression is recommended."

Can you RIP the PDF into PS and just save as TIF? A nice droplet from PS would automate that.

Quote from: gnubler on June 11, 2012, 04:23:56 PM

Quote from: DigitalCrapShoveler on June 11, 2012, 09:42:22 AMI am in awe of this whole thread.

It's prepress, man.

Yeah, something like that. Kinda like calling the 3 Stooges, Citizen Kane.

Quote from: Stiv on June 11, 2012, 04:26:40 PMLate to the party here.

Maybe the RIP can't handle the compression on the file or the preview.

From Adobe. "Monochrome Specifies a compression format. CCITTG4 is the default and generally produces the smallest file size. ZIP compression also produces a small file.
Note: Some applications cannot open TIFF files that are saved with JPEG or ZIP compression. In these cases, LZW compression is recommended."

Can you RIP the PDF into PS and just save as TIF? A nice droplet from PS would automate that.

Man, used to be any time I saw weird crap happening in a job with halftones, the very first thing I'd do is resave all the images & strip out that damnable LZW compression. Although, it was almsot always in combination with a Quack file that the weirdness would surface. Go figure.

Quote from: Slappy on June 11, 2012, 11:27:58 PMMan, used to be any time I saw weird crap happening in a job with halftones, the very first thing I'd do is resave all the images & strip out that damnable LZW compression.

Funny - I've never had an ounce of trouble using LZW.

      pretending it never happened. is the answer..next patient please1..

   This thread is only 2 pages long.

According to B4P rule 34, para 13, line 4, you can't invoke the  until this thread reaches page 10.

Quote from: DCurry on June 12, 2012, 05:54:47 AM

Quote from: Slappy on June 11, 2012, 11:27:58 PMMan, used to be any time I saw weird crap happening in a job with halftones, the very first thing I'd do is resave all the images & strip out that damnable LZW compression.

Funny - I've never had an ounce of trouble using LZW.

LZW wreaks havoc with Rampage. Alpha channels too. Digicorn no likey.

Quote from: DCurry on June 12, 2012, 05:54:47 AM

Quote from: Slappy on June 11, 2012, 11:27:58 PMMan, used to be any time I saw weird crap happening in a job with halftones, the very first thing I'd do is resave all the images & strip out that damnable LZW compression.

Funny - I've never had an ounce of trouble using LZW.

That was back on a Harlequin RIP, haven't seen anything like it since then fortunately.

prinergy eats lzw for breakfast and poops halftone dots.