If you are referring to the size of the document only, so that you can easily see on home screen under My Document.
All the document would be listed with their File name, Date and Size of the file.
As mobile application have limited features compare to the desktop version, so you can not access all the properties of a document.
This feature has not been added to the mobile app.
Thanks! But what I really need is the page dimensions, not the memory. Is
there any way to do that?
Also, I'm referring to Android.
Sorry, that would not be possible.