Reduce file size

hi,

 

i have 22 indesign documents have different page sizes , contain 36 different layers in each document. decided consolidate these documents 1. problem i'm having when delete bar 1 of pages new multi page document , save file documents file size doesn't compare size of original single page version of document i.e.

 

original single page document = 3.3mb

multipage document 1 page remaining = 19.5mb

 

i have tried save , overwritten file still no joy in bringing file size down. way can seem make file smaller export document idml.

 

the large document size seems have effect on size of pdf well.

 

original single page document exported pdf = 1.5mb

multipage document 1 page remaining = 9.9mb

 

the contents of both document same it's multipage document has had bar 1 pages deleted.

 

many thanks,

nik

my guess, , that's is, file retaining multiple page size info, along unused styles , swatches in other pages. idml stripping out.

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