How to Send PDF Files Via Gmail. PDF is one of the most common formats used for sending and receiving documents. The PDF format is especially useful when sending professional documents such as ...

You can send PDF files in Facebook Messenger. But you will need to send it from Google Docs or Google Drive app on iPhone or Android. To send a PDF file using Facebook Messenger, make sure you ...

“Is there any way to password-protect and lock a sensitive PDF file before sending it as an attachment through email? I cannot afford Adobe Acrobat Pro and free primopdf didn’t work for me ...