Open-source tools are more prevalent and important to use than ever before, especially if you’re trying to make the switch from Adobe software like Acrobat. With more data farming, AI integration, and paid subscription contracts, it can be hard to find good products without feeling like you’re selling your soul. As someone looking to move away from Adobe products and my beloved Adobe Acrobat, here are the six open-source PDF editors I’d happily move to for managing, viewing, and editing my PDF documents.