PDF/X-3 blurry? (in preview)
Hi, I am formatting a pdf file for print in CMYK. The printer suggests saving a pdf as a pdfx1-a 2001, but I do not see this as an option anywhere in preview. After some research it seems as though PDF/X-3 will work for this, so I saved a copy that way, but it appears very low quality and blurry. Is this normal? Should I use a different software? Thanks.
MacBook, macOS 12.6