The move is designed to make cases transparent and remove any uncertainty over whether documents have been received.
Barclays said is it catering for brokers on the road when attending meetings with customers in their homes for example.
Jackie Uhi, managing director, mortgage distribution at Barclays, said: “The launch of these enhancements to our online mortgage submission system is an important milestone in an ongoing journey of bringing improvements designed to support brokers and to help them deliver the very best service for customers.
“We’ve listened to feedback from the intermediary market and are working hard to develop a broker-centric approach which sees them served and supported as customers of ours as well as partners.
“We are excited to be the first lender to offer the ability to photograph documents and upload them in this way and look forward to introducing further innovations in 2015.”
Brokers previously had to complete a headersheet to attest that the documents are original, but this has been replaced by a tick box route where brokers confirm they have seen the originals.
Richard Merrett, technical director from brokers, Alexander Hall, added: “The scan and attach enhancement to Barclays’s online system has been extremely well received by our advisers and administrators.
“We have already seen positive results in Barclays’s time to offer since the launch of the facility and it demonstrates their willingness to listen to broker feedback and further develop a proposition that supports good customer outcomes.”