You can create different types of PDF files from within Illustrator. You can create multipage PDFs, layered PDFs, and PDF/x‑compliant files. Layered PDFs allow you to save one PDF with layers that can be used in different contexts. PDF/X‑compliant files ease the burden of color, font, and trapping issues.
For a video on creating PDFs from Creative Suite applications, see www.adobe.com/go/vid0209. For a video on exporting to PDF 1.7 for review or prepress purposes, see www.adobe.com/go/vid0210. For a video on creating interactive PDFs, see www.adobe.com/go/vid0211.
For Crop Artwork To, select Artboard.
For Tiling, select Tile Full Pages or Tile Imageable Areas.
Adobe InDesign and Adobe Acrobat both provide features for changing the visibility of layers in an Adobe PDF file. By saving a layered PDF file in Illustrator, you allow your illustration to be used in different contexts. For example, rather than creating multiple versions of the same illustration for a multilanguage publication, you can create one PDF file that contains text for all languages.
PDF/X (Portable Document Format Exchange) is an ISO standard for graphic content exchange that eliminates many of the color, font, and trapping variables that lead to printing problems. Illustrator supports PDF/X‑1a (for a CMYK workflow) and PDF/X‑3 (for a color-managed workflow).
You can create a PDF/X‑compliant file during the process of saving a PDF file.