Charlie Hebdo, the French satirical weekly propelled to global notoriety when its cartoonists were shot dead by jihadist gunmen a year ago on Thursday, has been abandoned in its struggle to "laugh at everything", one of the survivors of the attack said.

In the wake of the killing of eight of its staff on January 7, 2015, Charlie Hebdo became one of the best-known publications in the world and the hashtag #JeSuisCharlie flashed across social networks.

But now those same staff members feel they have been left to carry that torch alone, according to the newspaper's financial director, Eric Portheault, who escaped death by hiding behind his desk when the gunmen stormed in, AFP reports.