We are an accounting company based in Romania (a EU country), and we want to implement a system of paperless accounting, all document saved with digital signatures in a WORM storage (Write Once, Read Many), including the image of documents presented on paper, and not only the ones generated by our employee. 1. The problem is if there is any EU legislation to allow such a way to operate legally? 2. What would be the technical requirements? 3. A document (mainly an image of a document presented on paper) pulled out of the WORM storage would be proof in the court of law in the EU? 4. Are there any precedents in EU? 5. What should be the main stipulation the contract with our clients?