Is there anyone who can explain the flattening difference between Illustrator and Acrobat ?

Question

I found a difference thing about Flattening In Acrobat tools.

Those are Acrobat Pro & Illustrator.

I want to get same pdf flatten result in Acrobat like in Illustrator.

The original pdf file was same.

if I have to add some configuration or Preflight Fixup in Acrobat,

Could you let me know that ?

First. I used Flatten Transparency in Illustrator of CS6 version.

The result

and Secondly, I used Flatten transparency Fixup in Acrobat.

The result

Dov Isaacs · Accepted Answer

On behalf of Adobe …There is absolutely no good reason whatsoever to flatten transparency prior to the final RIP process. Likewise, there is no good reason to convert RGB to CMYK prior to the final RIP process. All modern RIPs/DFEs handle color conversion and transparency blending at least as well if not much better than any pre-RIP processing. In most cases, when print service providers demand pre-flattened transparency or all content converted to CMYK, it is due to ignorance as opposed to the capabilities of the software/equipment they have unless they are working with coal-fired, steam-driven RIPs!  - Dov

Abambo · Answer

Hi,There are several differences in both and I suppose the biggest is that there are 2 programming teams that may have handled the same task differently. Preflight, if I'm correctly informed, is [was initially] a third party add on for Acrobat.You say you're working with Illustrator CS6, but you do not state the version of your Acrobat. It may also well be that the programs are on a different level.And a third difference may well be that there are different optimization efforts taking place after the flattening operation. One may be more compressed than the other.As long as both are good looking in print, I would not bother for the result.This is for the direct answer to the question. You should, however, also consider, to let the transparency flattening to the rip. "Modern" rips (so rips +15 years young) can treat much of the conversion that is needed to get a high quality print in-rip, which will result in a highly optimized result for that rip. Any rip capable of working PDF/X4 files is aware of transparency and can make the RGB to CMYK separation. So you can avoid 2 of the most annoying trouble makers and postpone those operations until the very last moment.A.Nb.: Edited this afterwards to make the answer more correct. Additions are between square brackets. Deleted items are marked with strikethrough.

Sign up

To post, reply, or follow discussions, please sign in with your Adobe ID.

Sign in to Adobe Community

To post, reply, or follow discussions, please sign in with your Adobe ID.

Scanning file for viruses.

This file cannot be downloaded