△ PDF Reader offers you two ways to send files via email
Approach 1: Send in the File-viewing Mode
1. If you want to send out a file when viewing it, please tap more options button.
2. Tap "Email Out" and you will be able to send the file via email.
Approach 2: Send in the File Library
You can also select the file you want to mail out in the file library
1. Tap "Edit" at the top of the file library and you will see a check box listed in front of each file/folder.
2. Select the particular file/folder and tap the check box next to the file.
3. Tap more options and select “AirDrop” to email out the files.