To password protect a PDF in Adobe Acrobat Reader, you'll need the paid Pro version, which starts at $14.99 a month.

Macworld PDFs remain an important part of work and studies, with many documents using the format. Working with them can be a time-consuming and costly affair though, which is something Wondershare has ...

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To search a PDF on your Mac for a specific word or phrase, you can use the search function in the built-in Preview app.

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