PDF4QT (opens in new tab)

Unleash the power of PDF4QT: Your go-to open source PDF editor. Beyond its capabilities in encryption, optimization, advanced annotations, editing, and signing, PDF4QT offers an extensive range of features to enhance your PDF experience. With intuitive PDF viewing/editing applications and a handy command-line tool, PDF4QT streamlines your PDF interactions. Discover its vast potential today. Additional information:Developer: Jakub MelkaLicense: MITVersion: 1.5.2.0<img src=" src=" src="