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File format must be in PDF with all the fonts outlined (i.e. not embedded, but turned into vector paths)
Cutter Guides must not be baked in as a raster, they must always stay as vector paths (i.e. must not become part of artwork raster graphics. This will make it very difficult to remove the cutters otherwise)
Embedded raster images must be heigh high quality, sometimes, saving as PDFs can degrade the raster images due to optimisations settings
Send the Artworks via https://www.wetransfer.com or alternatively, use own internal system.the Project SharePoint folder as provided for each client per project bases.
What if we can not provide PDFs?
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An example AW(Artwork) from passed project.
Here is an example AW artwork / Label, that was provided by a client. This is a good example sample as the cutters are on a separate layer and all the fonts have been outlined.