This GroupDocs SDK is a Python library for communicating with the GroupDocs.Annotation Cloud API. The GroupDocs Annotation Cloud API is a REST service and document annotator that supports business documents and image file formats. The API provides a way to extract annotations from documents, retrieve a supported file formats list, check if a file or folder exists and more. GroupDocs provides document manipulation APIs that allows you to view, convert, annotate, compare, sign, assemble and search documents in your applications.
Transloadit offers media upload, modification, and storage as a service for developers who need that functionality (or, as Transloadit's homepage puts it, "geeks who run web or mobile applications") but don't want to worry about it themselves. There aren't too many moving parts to it, but they're ones a lot of applications make use of. The Transloadit API's main functions include: file upload, image resizing, video file encoding, image thumbnail creations, and file storage on Amazon S3.