To explore the contents just tap the disk image. In future, when you want to open the folder you’ll click the disk image, enter the password and Disk Utility will mount it as a device on your Mac - you’ll see it appear in the Finder sidebar. You should find a disk image for the protected version in the same location as your original folder.Disk Utility will create the protected folder.In the image format box, choose r ead/write and hit Save.

Enter and verify your chosen password.Choose the encryption type you want to use – Apple offers 128-bit and 256-bit protection.You’ll be asked to name the file you create and choose the location you want it stored – be happy, you’re heading to the last couple of steps….You should select the folder you want to protect, tap Choose when you’re done.Open Disk Utility and choose File>New Image>Image from Folder.Place the item(s) you want to protect in a folder.You can use this to create secure archives of files, folders, or even entire disks. You can create an encrypted disk imager in Disk Utility. On Excel documents you must choose File>Passwords to access the Encrypt this item dialog. Open the Set a password to open this document item to set one. You can password protect Microsoft files in the Review tab using the Protect item at the top right of the toolbar. Tip: You can also password protect any item in the Print dialog box: Tap print, tap Save as PDF using the drop down item at lower left of the print dialog box and then click Security Options, check r equire password, enter and confirm that password and the document you create will be protected. You can disable this protection in a locked item by unlocking it, returning to the Save As dialog and unchecking the Encrypt box. Next time you want to open this item a password will be required. Enter the password you want to use in these boxes. Once you do, you’ll see a Password and a Verify box appear.

Select Save As and then in the subsequent dialog box tick the Encrypt box at the bottom.

Open the file menu and press the Option key – the Duplicate item should turn into a Save As command.

You can also use Preview to lock PDF files (these don’t need to have been created in Preview). You’ll be asked to set a password, hit OK when you are done. Next time you open the document you’ll be asked for the password.

Password protect pdf mac