PowerPoint Template Editor application by Aspose.Slides is an online and free app for creating and editing PowerPoint templates. Custom PowerPoint templates are used to create various kinds of presentation templates: infographic, brochure, timeline, flow chart, design template, or even a game. In Slides Template Editor, it's possible to change any element of presentation by its size, colors, layouts and content. You may upload your own PowerPoint templates for editing, or used one of our PowerPoint templates: cv maker, menu maker, business card maker, etc.
Other Aspose Apps you may want to try: Merger web app for merging presentations; Watermark web app for adding watermarks to presentations.
Read an article on creating invitations in PowerPoint: 3 Easy Steps for Creating Invitations in PowerPoint
You can also edit other file formats. Please see the list below.