Attaching any file to an email But, what if you want to attach non-photo and non-video files to your Gmail message? This is where the Attachments [Gmail Attach] app comes in really handy.

Use the iPad's built-in iBooks application to attach a PDF document to an email. To do this, your computer must have at least iTunes 10.1 installed and your iPad must have at least iOS 4.2 installed.

You can combine multiple PDF files into a single, easy-to-share document using simple software on your Mac computer or Windows PC. Here's how.

Mail can’t present a document picker that looks into, say, PDF Expert and GoodReader, and unlike OS X you can’t just drop multiple files from different locations into a new email message.

If you need to combine multiple PDF files into a single document, the Preview application in macOS can do the task. AppleInsider explains how to transfer sections between PDF documents to create a ...

You can attach a folder to an email in Microsoft Outlook to send several files all at once by compressing the folder into a zip file.

You can attach any type of file to an email message, such as a PDF, JPG or XLS. Some recipients may block potentially dangerous types of attachments like EXEs though.