Editing a file with missing fonts or broken attachments

Issue: The file is missing fonts or broken attachments when opening in adobe illustrator.

If your computer does not have the font, we can get around it by placing the file into a new document and flattening the artwork.

Create a new file (to the correct size) and place the artwork that is broken.  (just click when placing so that the file comes in at 100%)

Go to Object and select Flatten Transparency...

These settings can vary on the file issue, for text issues make sure that converting All Text to Outlines is selected.

If you have an issue with colour (inverted colours), select Preserve Alpha Transparency (check your spot colours afterwards as this converts them to process).

If you need to make further changes to the file, you will have to now ungroup and release clipping masks.