Dr.Explain - Dr.Explain software is a help file authoring tool.
Canva - Canva is a graphic-design platform with a drag-and-drop interface to create print or visual content while providing templates, images, and fonts. Canva makes graphic design more straightforward and accessible regardless of skill level.
Document360 - Self-service knowledge base software focused on SaaS Products & Enterprise Software Projects.
Adobe Photoshop - Adobe Photoshop is a webtop application for editing images and photos online.
WinCHM - Creating CHM file, Make CHM file, Web Help. WinCHM Pro - Help authoring software (CHM, WebHelp, DOC, PDF) . With this powerful tool you can not only create chm file from scratch, but also convert a set of existing HTML files to a chm file.
Scribus - Scribus is a desktop publishing (DTP) application.