Which of these would you like?

: Genuine versions receive critical security patches that "free" unofficial versions do not.

The number 201801120055 corresponds to the release of Acrobat DC, specifically the update released on January 12, 2018 .

| Software | Platform | Key features | |----------|----------|----------------| | | Windows, macOS, iOS | Edit, convert, annotate, fill forms, merge — completely free. | | Foxit PDF Editor | Windows, Mac, Web | Powerful free version with fewer limits than Acrobat. | | LibreOffice Draw | All OS | Edit PDFs as vector graphics (open source). | | Sejda.com | Web, Windows, Mac | Free tier with 3 tasks/hour, no installation needed. | | Preview (macOS) | Mac built-in | Annotate, sign, fill forms, rearrange pages. | | Microsoft Edge/Google Chrome | All | Basic annotation and form filling (no editing text). |

of the latest Acrobat Pro, which includes all advanced tools like PDF editing, conversion, and e-signatures. Official Reader