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

You can lock cells in Excel by heading into the program's "Protection" tab. There, you can set a password, and protect your data.

If you use Excel 40 hours a week (and those are the weeks you are on vacation), welcome to the MrExcel channel. Home to 2,400 free Excel tutorials. Bill "MrExcel" Jelen is the author of 67 books about ...

HOUSTON, Texas (KTRK) -- A "not as humid" front arrives Thursday to crash the humidity down for the weekend, and that will lead to a few crisp mornings and comfortably warm afternoons. We are starting ...

Sep. 29, 2025 — Scientists discovered that high-fat junk food disrupts memory circuits in the brain almost immediately. Within just four days, neurons in the hippocampus became overactive, impairing ...