I have clients submit ads as pdfs but sometimes I need to recreate the pdf because the client forgot to include all printer marks, or I need to convert a spot to process, or whatever. The way I do it is to create a new InDesign CS3 file, place the pdf file into it, and export to pdf using my preset. My question is does importing a pdf file into ID and then exporting back into pdf affect image quality, even slightly assuming the compression settings are the same in the export to pdf' dialog box - mainly all compression set to none?
Thanks.
-Mark
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