Charlie Hebdo will feature a cartoon of the Prophet Mohammed in a special issue of the magazine produced after last week's newsroom massacre in Paris.
Three million copies will be printed in several languages instead of its usual 60-thousand when it goes on sale tomorrow.
17 people were killed in three days of violence last week.
Editor-in-chief Gerard Biard has told French newspaper "Liberation" it's been a struggle to get the magazine ready in time.