And because PDF Expert has Dropbox, Google Drive, and iCloud Drive support built right in, it takes just a few seconds to open a ZIP file and move the files inside to where you really need them.

How does a zip file work, and how can you use it? Here's everything you need to know to master the art of sending massive files.

So if there are files inside a ZIP file that you want to convert—like for a PDF to DOCX or MP3 to AC3 —you must first extract the files using one of the methods described in the section above ...

Zip files compress your folders or files and save storage on your computer. They're also easier to send from device to device. Here's how to make one.

Any help will be appreciated!” The quickest way to do this is to ZIP the PDF file and protect the ZIP file, or use Microsoft Office’s built-in encryption tools to create a password.