Paulsen will sign with the 49ers, CSN Bay Area reports.
Valued primarily for his blocking, Paulsen has 82 receptions in six professional seasons, with only three of those catches coming last year for the Bears. San Francisco seems to be targeting the middle tiers of free agency, also reaching early agreements with QB Brian Hoyer, FB Kyle Juszczyk and WRs Pierre Garcon and Marquise Goodwin.