To password protect a PDF in Adobe Acrobat Reader, you'll need the paid Pro version, which starts at $14.99 a month.
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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Wondershare has given PDFelement a huge upgrade, with new AI tools that speed up and simplify how you work with PDFs ...
Need a free, cross-platform ebook reader app that's easy to use? See why Readest may be the only ebook reader you'll ever need.
While there is no real confirmation from the e-retailer that this was true or rolled out in a recent software update, it wouldn't be the first time that Amazon has blocked users from downloading ...