Open pdf file with Illustrator

Adobe Illustrator is not, repeat not, repeat yet again not a general purpose editor of PDF files.

The only PDF files that can safely and reliably be opened and edited with Adobe Illustrator are PDF files that were created from Adobe Illustrator using the “save editability” option and for which all the original fonts and linked assets are installed on the system on which the editing is to occur.

Any other PDF editing in Illustrator, either by opening the PDF file Illustrator or by using the editing functions within Acrobat that invoke Illustrator may result in color space changes, font changes, layout changes, and/or lost content. Editing PDF in Illustrator should be considered as an emergency procedure of last resort!

          - Dov