Perhaps.... You know you can link an .ai file into another .ai file... I don't work with this a whole lot. And I don't do a lot of hyperlinks in .ai files.. but this might work, or at least be something to test... After linking, if the link is then embeded, the link is effectively "expanded". So, the linked .ai file gets unlinked and its contents become a part of the open document, just like anything else in the document. Basically, it is as if you copy/pasted one file into another. Just without copy/paste steps. Since the "clickable" part of url strings is a function of the PDF export and Acrobat. This should allow the export to see the url string like any other url string and therefore generate the "click" with the export. This would allow you to have one master file and use links until you are ready to output one of the many files containing the link. THat way, if the original url string changes it would be updated in links. You would simply need to embed the link, then Save As/Export to PDF.
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