This may be outside the scope of the site so if so sorry... I know we deal almost exclusively with images but in the past on facebook i think sometimes folks were able to answer illustrator questions
I created a logo in Illustrator CS5 to be used as an engraving. The only guidelines I was given was the dimensions 1.5" x .5" and either PDF or JPG
I designed the file on an artboard to fit snug in 1.5 x .5. I saved as PDF with default settings, then found out they werent opening in a Adobe program so have to save with editing capabilities turned off (they were seeing hidden layers)
After they engraved it and it is a fraction of the size I designed it as they said when they tried to enlarge it the image was blurry. I am trying to figure out where I went wrong since I save it at the right size to begin with and I maybe incorrectly assumed that the output was a scale-able vector file..
again apologies if this is too far outside scope
cannot attach the pdf...
-Jennifer