Draw - from a quick sketch to a complex plan, Draw gives you the tools to communicate with graphics and diagrams. With a maximum page size of 300cm by 300cm, Draw is powerful tool for technical or general posters, etc.
Pencil Project - Single-user mockup / wireframing / diagramming tool
Scribus - Scribus is a desktop publishing (DTP) application.
draw.io - Online diagramming application
Affinity Publisher - Professional desktop publishing app
LibreOffice - Draw - Draw, LibreOffice, ODF, open standards, creative software, vector drawing
Xpublisher - Xpublisher is a content publishing software that helps you to structure your content and then allows you to easily publish the content on various platforms.