Indesign PDF to Photoshop creating unwanted lines

i'm having painful issue trying collaborate pdf's on id , trying them export jpeg's.

 

the issue: have made series of advertisements ad campaign in pdf format , want ad them portfolio , can upload them website jpeg or png. have gathered them on indesign page in basic layout , tried export them jpeg etc. when export them, jpeg , png display pdf lines /cut marks/annoying line artifacts.

 

question: possible add 1 or multiple pdf's (as jpeg) indesign export png or jpeg , not cut marks or ever want call them.

 

in image below can see results of adding pdf indesign , converting jpg. regardless of how it, exporting jpeg straight indesign or exporting pdf , placing in photoshop, results same.

 

 

 

i stick out , export them individually jpegs , import jpegs layout have created have 6 more pages this... damn frustration makes me want karate cop indesign right in face.

they transparency flattening artifacts, need determine flattening happening.

 

open original pdfs acrobat. can see of lines? they'll appear , disappear @ different magnifications, try zooming in , out of different areas of page.

 

if can see them, you'll need re-export original layout files, compatibility set @ least acrobat 5 (pdf 1.4).

 

if can't see them, flattening being done indesign on export. best way jpg indesign layout export unflattened pdf (i suggest using pdf/x-4:2008 setting), open in photoshop , save jpg there.

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