Password Protect PDF and Compress PDF for Mac For Free

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How to Password Protect PDF and Compress PDF for Mac - video instructions

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Folders can't be directly encrypted in macOS, but you can put them in password-protected containers. This has the effect of protecting your folders and the files they contain with a password. You can password-protect folders on macOS using the built-in Disk Utility application or a third-party tool called Encrypto.
Open a large PDF file using Preview. Click on File> Export. Once there, from the Quartz Filter drop-down box, choose the Reduce File Size option to make your PDF file smaller.
Open a file in Acrobat and choose Tools > Protect. Select whether you want to restrict editing with a password or encrypt the file with a certificate or password. Set password or security method as desired. Click OK and then click Save.
One-click option to protect a PDF with a password Choose File > Protect Using Password. Alternatively, you can choose Tools > Protect > Protect Using Password. Select if you want to set the password for Viewing or Editing the PDF. Type and retype your password.
Click the File menu and now hold down your Command key. The Duplicate option will change in to Save As, click that. Give the file a name (or keep the same name) and click the Encrypt box. Enter a password and save the file.
Right-click on the folder. Select Properties from the menu. On the dialog that appears, click the General tab. Click the Advanced button, then select Encrypt content to secure data.
In Disk Utility, go to File > New Image > Image from Folder Now, select the folder you want to password protect. You can save this new folder as anything you want. And after that, click Save. Click the padlock icon and select Lock Note. Click Set Password.
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