The French satirical magazine Charlie Hebdo is due to publish a cartoon of the Islam's Prophet Muhammad on the cover of its first issue since assailants killed 12 people at its offices.
The newspaper Liberation hosted Charlie Hebdo staff as they prepared the new issue. More than three million copies of its latest edition will be printed, which is fifty times more than usual.
Liberation published the Charlie Hebdo cover online late on Monday night, showing a man in a white turban, holding a sign reading "Je suis Charlie".
Charlie Hebdo's past caricatures of the Prophet appear to have prompted last week's attacks, which left a total of 17 people dead.
Brothers Cherif and Said Kouachi and their friend, Amedy Coulibaly, were killed on Friday by police after the murderous spree at Charlie Hebdo offices and a kosher supermarket.
French police said on Monday that as many as six members of a terrorist cell involved in the attacks may still be at large.
Seeking to reassure a jittery nation in the wake of the attacks, French officials announced the unprecedented deployment of thousands of soldiers to boost security, including at Jewish schools.
"We have decided... to mobilise 10,000 men to protect sensitive sites in the whole country from tomorrow (Tuesday) evening," Defence Minister Jean-Yves Le Drian said after an emergency security meeting.
"This is the first time that our troops have been mobilised to such an extent on our own soil," he added.
Another 5,000 security officers were also part of the reinforcements.
Meanwhile, the partner of one of the slain attackers behind the three-day killing spree in Paris crossed into Syria last week, according to the Turkish foreign minister.
Mevlut Cavusoglu said on Monday that Hayat Boumeddiene, 26, had crossed into Syria on January 8, the same day that her partner Amedy Coulibaly is suspected of killing a policewoman outside Paris on the second day of the attacks which left 17 people dead.