Comments on: Don’t fear the white lines in your PDFs created by InDesign

By: Matt

Matt — Thu, 31 Mar 2011 01:18:22 +0000

typo: “one file – output multiple device”

By: Matt

Matt — Thu, 31 Mar 2011 01:15:45 +0000

I have had many conversations reassuring worried clients when they have received finished pdf artwork and have notice the ‘white lines’.

I have found over the years that the ‘fine slice lines’ appear consistently in CMYK only projects as well as RGB & CMYK mixed.

RGB images shouldn’t be a problem if you are working in a CMYK only indd doc (i.e. no spots), all of your RGB images are tagged (ICC profiles), Transparency blend space is CMYK, Your document CMYK profile matches your output profile (by default if using PDF/X-1:2001 standard).

I worked in a pre-press / retouching department and most of our projects used an RGB image workflow… kind of a ‘one file – out multiple device’ scenario. Great for repurposing to web, tv, large format print or offset print

In saying that, if you haven’t had much experience with RGB image workflows I would suggest sticking within CMYK workflows for safeties sake if you are outputting at a commercial printer.

By: Mr Subs

Mr Subs — Wed, 30 Mar 2011 21:29:04 +0000

When you zoom in and out the line might not always disappear. If the line does not increase or decrease in size or the line moves around it is defiantly just a glitch.

By: ipadjvdl

ipadjvdl — Wed, 30 Mar 2011 16:17:04 +0000

This is only a display problem, which you can solve by changing your display preferences. Choose the Preferences command. Look under “Page Display” in the list on the left. Uncheck the option “Smooth Line Art”. Press OK and the white lines will disappear. Afterwards, make sure the “Smooth Line Art” option is checked again, because otherwise your vector artworks looks jaggy.

By: Anoop

Anoop — Wed, 30 Mar 2011 13:34:50 +0000

Yup i’ve often wondered why this way when making a multi pg catalogue. I always put it done to reason 1) display issues. Hardly ever was a result of reason 2.