> For our future reference, do you have a preferred Adobe PDF preset > we should
> use when creating PDFs for offset printing?
I am answering this based on using Indesign as your method of PDF creation. If that is not correct please let me know and I can help with another program. The most important settings to creating a print ready pdf are including the fonts, not to down-sample below 300 dpi or 1200 dpi for monochrome images and including the bleed. Below is a basic setup that will produce a quality pdf. For more advanced options such as color management or compression settings contact me and we can discuss.
In indesign cs4 go to >File > Adobe PDF Presets > Define > Highlight [High Quality Print] > New
Type in your new name for this setting
Change the following
On the General Tab > Compatibility up to 8
On the marks and Bleed Tab > Select Crop Marks and Page information also change the all four bleed numbers from 0 to .125