Adobe Acrobat is powerful but expensive. Most people do not need its full feature set. A good free pdf reader or free pdf editor windows can handle everyday tasks.
PDF reader vs PDF editor
A pdf reader opens, displays, and prints PDFs. A free pdf editor does more: fill forms, add comments, combine or split pages, convert formats. When people say they need a pdf reader, they often mean an editor.
What to look for
In a free pdf reader: fast viewing and printing, search inside PDFs, bookmarks and navigation, low memory use. The best pdf reader is one that opens quickly and stays out of your way.
In a free pdf editor: view, organize, edit metadata, merge and split, fill forms and sign, export or convert. Free tiers often limit pages or features. A free pdf editor windows that handles merge, split, form fill, and conversion is usually enough for personal and light business use.
Alternatives to Adobe
Adobe Reader is only a reader. Adobe Acrobat is the paid editor. On Windows, alternatives include pdfop, Sejda, Smallpdf, Foxit, and PDF-XChange.
Desktop vs online
Online free pdf editor tools require uploads and often limit file size or daily usage. A desktop free pdf reader and editor keeps files local and works offline.