resaving pdfs and image quality

[New_Bie@adobeforums.com]

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

[de_Siem@adobeforums.com]

if you want to be sure preflight the pdf before and after and check the images in the pdf.

[Russell_Goodman@adobeforums.com]

New Bie:

Many of the adjustments you want to make can be done to the PDF within Acrobat if you have the Acrobat Professional version.

Such as: convert colors, add printers marks and change Page Box sizes.

You'll find these tools under the "Advanced" menu > "Print Production"

And also under the "Document" menu > Crop Pages > Change Page Size