I have been running into issues with dropshadows, bevels, transparencies and gradients for years now, it seems like every time I think I have my issue fixed I run into something new.
I am REALLY hoping that there is a certain printing format that I can just export as and be done with it, but that never seems to be reality.... :(
The big problem I am facing now is to get drop shadows printed correctly... They seem to always have this funky box print around them and I have tried to 'Convert to Bitmap', .tiff files, etc etc etc.... I am currently running CorelDRAW X6 and my RIP software is Roland Versaworks. I typically print .eps files but I have just recently been printing PDF/X3 files with decent luck. However, I had to remove all the neat effects from a retractable banner just to get the job out on time... I know this is a common issue, but I am crossing fingers that someone else out there knows exactly what is going on and can point me in the correct direction..... THANKS in advance!!!!
I use versa works 4.1.1 everyday, the problem is the RIP itself does not handle transparency well, it also has issuers with Illustrator PDF files with layers. We resolve these issues by rasterizing the file and printing as a TIF.
Corel files are easy you just convert the shadow in the file to a bitmap, AI files are worse for two reasons, the conversion to TIF process takes allot longer as you need to do the entire file and two AI will cause color shifts with all vector content some times with layers and I have been unable to identify the trigger that causes it.
A TIF or converted bitmap has to work, you did it incorrectly.
Select the drop shadow, break it apart send it to the back of the drawing and convert it to a bitmap, make sure transparency background it unchecked.
When you select convert to bitmap in the conversion dialog make sure the transparent background is UNCHECKED
The correct way to "flatten" almost always mean having the bitmap (without transparency) in the background. To make sure it looks right, the bitmap must also contain vector objects behind it. Only vector objects not affected by the transparency in any way, can be left as vectors. Your RIP may accept transparent bitmaps via PDF 1.4 or higher, but it may also create unwanted "rectangles" and color shifts.
Feel free to upload a file if you want us to have a look at it and make suggestions.