Free Online File Annotation Apps

Annotate Word documents online, add, remove annotations and much more.

Add annotations in Excel spreadsheets from your favorite browser.

Add, manage and collaborate on PowerPoint presentations.

Annotate Pdf documents online from any device.

Free online app to add annotations in eBooks (EPUB, MOBI, etc).

Annotate and manage annotations in eMails online.

Annotate images online with few clicks.

Free app to annotate HTML and other web document formats.

Annotate and collaborate on OpenOffice documents online.

Improve your CAD drawings using annotations and collaboration features from Online CAD Annotation App.

Annotate Microsoft Visio files online.

Annotate DOCX files online.