When you export to PDF much more information is preserved than when you print to PDF. An export preserves display boxes, annotations, keywords, outlines and any other PDF properties that may be defined in the document. Printing to PDF will flatten the output considerably: Annotations are lost as annotations and burned into the page stream. Hyper-Links are not preserved, nor are outlines, etc. Printing to PDF may be useful when you have an unlocked but encrypted PDF document that you want to be able to edit and save without restrictions. In this case, if the document flattening is not an issue, the solution is to print the document to PDF to obtain a decrypted copy that can then be opened and freely edited in PDFClerk Pro. PDFClerk Pro can currently not decrypt PDF documents.