70. Generate a PDF/XCompliant DocumentBefore You Begin 66 About Preflighting 67 Preflighting a PDF PDF/X stands for PDF Exchange and is a subset of the Adobe PDF file format. PDF/X eliminates many of the printing problems caused by color , font, and trapping variables . You can verify whether a document is PDF/Xcompliant by preflighting the document within Acrobat. If your document is not PDF/Xcompliant, you need to return to the original source document, make any necessary changes, and generate a new PDF.
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