As IS what does it mean

Discuss QuarkXPress print functionality and printing workflows

As IS what does it mean

Postby les112 » 28 Nov 2014, 17:01

I am exporting a quark 10 document whose 16bit/color images have embedded adobe RGB 1998 profiles. Does AS IS mean that the images in the exported PDF document will still maintain 16bit/color and their original Adobe RGB 1998 embedded profiles.
les112
 
Posts: 16
Joined: 08 Sep 2013, 22:56

Re: As IS what does it mean

Postby MikeWenzloff » 29 Nov 2014, 10:31

I'm not sure I am fully understanding. As to the profile, profiles are generally embedded when present in the file.

What file format are these images in? I mean, are they TIFFs, JPGs, ... ? I ask because there is often confusion regarding bit-depth. As far as I know, QXP cannot read 16-bit images properly.

Mike
MikeWenzloff
 
Posts: 1026
Joined: 05 Jun 2013, 12:55

Re: As IS what does it mean

Postby les112 » 29 Nov 2014, 16:58

They can be tiff or psd
les112
 
Posts: 16
Joined: 08 Sep 2013, 22:56

Re: As IS what does it mean

Postby MikeWenzloff » 29 Nov 2014, 17:30

Heh, heh. PS saved out my images incorrectly. I don't use 16-bit images normally. The 16-bit images come in fine.

They hit the PDF as 8-bit per channel regardless of the PDF profile (well, the ones I tried which include my As Is profiles). You can check this in Acrobat if you have it. Which includes seeing that the RGB profiles used are maintained in the PDF.

Mike
MikeWenzloff
 
Posts: 1026
Joined: 05 Jun 2013, 12:55

Re: As IS what does it mean

Postby les112 » 29 Nov 2014, 21:32

Its a pity that the 16 bit format cannot be maintained through the work flow. Hopefully Quark will include it their next major upgrade.
les112
 
Posts: 16
Joined: 08 Sep 2013, 22:56

Re: As IS what does it mean

Postby MikeWenzloff » 29 Nov 2014, 22:44

I am probably misremembering, but I seem to recall that while a rip can process 16-bit images, they are processed to 8-bit before imaging. It might make an improvement to gray images, but I wouldn't think so with continuous tone color images.
MikeWenzloff
 
Posts: 1026
Joined: 05 Jun 2013, 12:55

Re: As IS what does it mean

Postby max.peter » 30 Nov 2014, 03:42

QuarkXPress was mainly made for print purpose. So, a CMYK color mode is used finaly. There is a huge difference between the color gamut of CMYK and RGB and between 16 Bits and 8 Bits per channel. The print workflow include RIPs with some standards.
You need only RGB? Well, there is a lot of office software.
Every day is a good day to learn something new.
User avatar
max.peter
 
Posts: 1500
Joined: 11 Sep 2010, 12:35
Location: Romania

Re: As IS what does it mean

Postby les112 » 30 Nov 2014, 14:33

One of my workflows goes camera (12 bits RGB) photoshop (16 bits RGB) Quark ( combine with text) export pdf( RGB) Photoshop (16 bits RGB convert to tiff image) ( Rip takes RGB input and converts to CMYK 8 bit) Print Epson 7900.
Another workflow: camera ( 12 bits RGB) Photoshop (16 bit RGB to CMYK) Quark ( combine with text) export PDF ( CMYK) to printers.
Each project has 300 images and modifying the images in 8 bits not very good. Also my monitor is 10 bits. So would like to keep stages as accurate and as standard as possible.
les112
 
Posts: 16
Joined: 08 Sep 2013, 22:56

Re: As IS what does it mean

Postby MikeWenzloff » 30 Nov 2014, 17:37

Converting anything from a lower bit-depth to a higher one doesn't do anything to increase its dynamic range. If I read the reply properly. Shooting higher, scanning higher and I would still convert to 8-bit (the 24 bit that you start with is 8-bit per colorant). I would just leave it there.
MikeWenzloff
 
Posts: 1026
Joined: 05 Jun 2013, 12:55

Re: As IS what does it mean

Postby les112 » 30 Nov 2014, 18:25

My canon 1Dx camera converts at 14 bits per color, so I would like to keep resolution for as long as possible in the work flow, converting to 8 bits/color for the final stage.
les112
 
Posts: 16
Joined: 08 Sep 2013, 22:56

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