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.

How to Save Part of a PDF File to Another File. PDF files are text-based documents that can include links, photographs and other media. They're typically opened with Adobe Acrobat or as read-only ...

Preview automatically fills in the current PDF’s name. To avoid overwriting that file, enter a new descriptive name and click Save.