The Selection options in MobiDocs on iOS offer a convenient way to select any part of the content or the entire content (text, images, etc.), after which you can manage it per your choice.
Select all content
1. Open a Document file on your iOS device.
2. On the Home Tab, choose Select All.
Select a part of the document
1. Open a Document file.
2. Double-tap on any word to select it. Selection handles will appear.
3. Drag the selection handles to increase/decrease the selection.
Select whole paragraph
1. Open a Document file.
2. Triple tap on a word to select the entire paragraph that contains the selected word.