white lines running through document

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when open .pdf documents insurance company using adobe reader, there thin white gridlines run through entire document, cutting off text , making document difficult read. @ first thought had how insurance company created .pdfs, have tried opening same document via foxit , don't have same issue when using adobe reader. if try printing document, lines remain , if zoom in there no change either (the lines stay proportional depending on how zoomed in). have gone through many of preferences thinking might rendering issue, no luck. else have ideas? have tried uninstalling , reinstalling reader twice no effect.

it not issue reader, of pdf. can post
somewhere at. if have no other place can use
acrobat.com.

mike


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