I have just discovered a very serious bug in Adobe Acrobat Professional 8.1.2 basically after adding printer marks specifically trim marks the outline (i.e. shape/path) of a logo in this artwork becomes heavily distorted! This doesn't happen to all other vector graphics but it only happens with this logo. I have created this PDF using the latest version of Photoshop CS3, this particular logo is one layer containing a simple symbol and text all outlined so nothing special there. I only noticed this because I just happen to zoom in at 300% on the artwork after adding the trim marks.
This is quite serious because this means that any vector graphics/shapes/outlined graphics that you may have in your artwork can become badly distored after adding trim marks! Usually I always provide Illustrator files with trim marks to my printer, but only recently I started providing PDF files with trim marks to printers so this problem was in two other artworks that got printed! Luckly for me the logo and print was quite small so the distorted edges of the letters was barely visible in the final print work. This problems happens in version 8.1 and 8.1.2 in both WinXP 32-bit and Vista 64-bit. Again it doesn't happen to all shapes but in my case it only happened on the logo I was using, which again is very simple and straight forward created using minimal vector points, either way this shouldn't be like this, it's crazy!
Please let me know if anyone is experiencing this...
Lori Kassuba is an AUC Expert and Community Manager for AcrobatUsers.com.