Sketch - Professional digital design for Mac.
Affinity Publisher - Professional desktop publishing app
Inkscape - Inkscape is a free, open source professional vector graphics editor for Windows, Mac OS X and Linux.
Contenta Publishing Suite - Contenta Publishing Suite is an advanced-level and web-based publishing software solution offered by RWS that allows you to create good quality content and offers you optimized steps and procedures to publish the content successfully.
Adobe Illustrator - Adobe Illustrator is a vector graphics editor.
RebelMouse - Publishing platform for distributed content