It is true that PDF have 2 layer – image layer and text layer?
If it’s true, so how I can get image layer from PDF to print it?
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It is true that PDF have 2 layer – image layer and text layer?
If it’s true, so how I can get image layer from PDF to print it?
No it is not true. The pdf content stream is a binary stream with basic primitives: draw share, draw image, position pointer x,y, draw text..etc
PDF however also have layers, those are like several content stream stacked on top of each others. While technically feasible, I never saw any PDF where images were is a separate layer.