PDF and PSD export settings for outer shadows

[wheeleran]

hi all. I've got a few subtle outer shadows on a print label made in Publisher; one on a shape used as a part-background layer, one on a transparent image imported as an affinity photo file, so not a png or lossless webp. Exporting to either PSD or PDF removes the shadow. I've googled, there's not much and its a bit confusing, but is the solution for PDF  to change the rasterize: nothing setting to rasterize: unsupported properties, because shadows are apparently rastors?

and what about PSD? this is the one i'd really like to get right, because i'm preparing these for a print shop that exclusively uses Adobe. I've given them the "preserve editability" preset, which also sets all the other options to the same and Resample to Bilinear. i thought that would be it, but no. if i tick the "rasterize all layers" option box (because shaodws are rastors?), the preset changes to "final cut pro x" and at that point i really don't know what i'm doing. I don't particularly WANT to rasterise everything, but i DO want my shadows... can anybody help me with the correct settings, so that i can export to PSD and what they import into Illustrator is correct, shadows and all, and they can continue to work on it? thanks in advance!

I've uploaded an example file. The shadows are on the onions, and the left hand darker yellow panel's right hand edge. color profile is FOGRA39, because we're in Italy and that's what the print shop wants.

2024 conserva di cipolla.afpub

[NotMyFault]

The structure of your file is very simple, I found only 2 layers with layer fx.

i suggest to swap layer fx against simple surrogates using e.g. gradients, or just rasterize the onion layer (you may keep a copy of the original layers with fx, but deactivated to allow further editing).

I don’t understand why users mix concepts like layer fx depending on blend mode other than normal, in this case multiply, in CMYK based documents. This is a recipe for trouble, at least incompatibility to Adobe products.

blend modes (other than normal) do not „harmonize“ with subtractive CMYK color model and its inherently redundant K channel.