The General Advertiser was an eighteenth-century newspaper. It was originally known as the London Daily Post and General Advertiser, and then became the General Advertiser. Printer Henry Woodfall took over the paper in 1713, renaming it the Public Advertiser. He operated it until his nineteen-year-old son, Henry Sampson Woodfall, took over the paper in 1769. relaunched as the Public Advertiser with much more news content. In 1758, the printer's nineteen-year-old son, Henry Sampson Woodfall took it over. During this time, The anonymous polemicist Junius sent his letters to the Public Advertiser. Henry Sampson Woodfall sold his interest in the Public Advertiser in November 1793. N. Byrne took it over and printed it as the Political and Literary Diary, but it went out of business by 1795.

William de Grey served as Attorney General under William Pitt the Elder from 1766-1771. In 1770, he took part in the trial of Henry Sampson Woodfall for printing and publishing the Letters of Junius, which he claimed contained seditious libel. Woodfall went free on the declaration of a mistrial. John Miller, printer of the London Evening Post was declared not guilty. Only bookseller John Almon was declared guilty, though he appears not to have been punished.