RDA Holding, publisher of the 91-year-old Reader’s Digest magazine, filed for bankruptcy to cut $465 million in debt and focus on North American operations as consumers shift from print to electronic media.

The company is the latest in a line of iconic businesses to have recently sought court protection from creditors, after Hostess Brands, maker of Twinkies and Wonder Bread, and Eastman Kodak, inventor of Kodachrome and the Instamatic camera.

Reader’s Digest, founded by DeWitt and Lila Wallace, went public in 1990. An investor group led by private-equity firm Ripplewood Holdings bought it in 2007 for $1.6 billion and the assumption of about $800 million in debt. The company also filed for bankruptcy in August 2009, citing a drop in advertising spending and the debt load incurred in its acquisition.

The company listed assets and debt of more than $1 billion each in Chapter 11 documents filed Sunday in U.S. Bankruptcy Court in White Plains, N.Y. Under a restructuring agreement supported by Wells Fargo, $465 million of remaining senior notes will all convert to equity. The company expects to have about $100 million in debt when it exits Chapter 11, about an 80 percent reduction.

Among the company’s largest unsecured creditors listed in court papers were Luxor Capital Group of New York, listed as administrative agent for a $10 million loan, and the U.S. Federal Trade Commission, with an $8 million claim.

“We have had an ongoing process to simplify and rationalize our international business by licensing our local markets to third parties, to other publishers, to other investors and that has been a big part of our effort to streamline the company and bring in proceeds to bring down debt,” Robert Guth, Reader’s Digest’s chief executive officer, said Sunday in an interview.

The company’s flagship print magazine is read by more than 25 million people, according to its website. The company publishes 75 magazines globally including 49 editions of Reader’s Digest, Taste of Home, the Family Handyman and Birds & Blooms. Reader’s Digest “sold more digital editions in December than we did newsstand editions,” Guth said.