The phrase "document formats" refers to the way information is organized and presented in a digital file. It includes things like the file type (.docx, .pdf), the layout, fonts, and other formatting elements used in the document. Full definition
It goes great when viewed on digital documents as if you're sending your copy in portable document format or PDF. (resumeprofessionalwriters.com)
It defines the kind of document formats to be used in creating an eBook and also helps reading systems in finding and rendering content (can be thought as website in a box). (micrologicglobalservices.com)
The app also supports a variety of other document formats stored locally or in the cloud. (tomsguide.com)