Faint boxes when Saved in PDF Format 1

[flasher40]

Hi,

I use Illustrator 9 to develop a comic strip that I market to newspapers. One of my customers has asked me to supply the strip in the .pdf format.

If I employ special effects such as Gaussian blur, I notice that when I use File --> Save As --> Adobe PDF from inside Illustrator, any special effects are surrounded by boxes with very faint, but noticeable, lines.

Any suggestions on how to eliminate these lines?

Thanks!
Bill

 

[apepp]

...that is transparency stitching in acrobat 1.3 (acrobat 4), anything higher and transparency is preserved in pdf, therefore no stitching visible. In acrobat with a 1.3 pdf choose to turn off smooth images in the preferences and they should disappear, it is the way acrobat renders to screen flattened 1.3 pdf's...

Andrew

 

[flasher40]

Andrew,

Sounds like you have the answer I need. I wasn't able to find the "smooth images" preference in Illustrator or in the .pdf window that pops up right before the file is saved to pdf. Where is that option located?

Thanks!
Bill

P.S., I have the option of using Adobe 5.0 but wasn't doing that because the client said their software was old and couldn't handle all Acrobat files.

 

[apepp]

>>> Where is that option located?

...in acrobat preferences, it is not an illustrator preference...

...some output devices don't like transparent pdf files, somewhere along the line transparent artwork does requires flattening, if not after pdf creation then during pdf creation...

Andrew

 

[flasher40]

Thanks, Andrew. Very helpful. You know your stuff.

Bill