Hi Lukasz,
Interesting challenge, which we’ve heard of a couple of times, and have some related experience and ideas we can share.
Our Export Documents solution backs up all (or certain) Workfront documents (optionally, including prior versions) into a logical folder structure that maps to the original folder location within Workfront for backup purposes (optionally, including a periodic sync to keep the backup current). Those interested are welcome to email me at doug.denhoed@atappstore.com for details.
In your case, though, you’re dealing with linked documents, so our solution will not apply…but can at least provide a sketch of a custom program design’s key API components for you;
I hope that gives you some ideas (both Pros and Cons), and if you proceed, wish you good luck.
Regards,
Doyg