Infraware
Melting Source
DataViz
Doist
Hefei T-Stack Information Technology Co Ltd
Microsoft Corporation
Notion Labs, Inc.
MobiSystems
Adobe
Foxit Software
Notebook đa năng, do Microsoft cung cấp
Google Inc.
Infraware
Xodo Technologies Inc.
Samsung Electronics Co., Ltd.
PSPDFKit GmbH
PDF Technologies, Inc.
Two App Studio Pte. Ltd.
INFRAWARE, INC.
Notegraphy
Easy4U Ltd.
lfantasia
Appaday Labs
PotatoProject
Flexcil Inc.