If it’s not bog-standard and critical I wouldn’t use Automatic Jpeg. There’s a lot of things that can be critical for printing, but if it’s bog standard stuff then this setting is best. Unless it’s over the threshold set in the PDF settings for images above a certain ppi.Īutomatic JPEG each image is checked and either ZIP or Jpeg is applied. PSD are rasterised to the native resolution of the PSD file.
PDF export from inDesign/Illustrator will pick out the the vector vs non-vector and compress them accordingly. Zip vs Automatic JPEG compression comes up from time to time. Thought this is what you meant - but wasn’t sure. Which setting I use depends on the job, but more often than not, it’ll be JPEG set to “Maximum Quality” (minimum lossy compression). There are options to save the images with varying degrees of JPEG compression in addition to no compression or ZIP. When the InDesign file is saved out to a press-quality PDF, the default option is for the photos to be saved as JPEGs. PSD has been placed into an InDesign file.
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