The best free PDF reader apps do more than just act as a PDF viewer - any modern browser can do that. What I'm looking for is tools that go beyond that, offering commenting, collaboration, and ...

Adobe Acrobat Reader DC software is the free, trusted standard for viewing, printing, signing, and annotating PDFs. Its the only PDF viewer that can open and interact with all types of PDF content ...

Adobe Acrobat Reader DC software is the free, trusted standard for viewing, printing, signing, and annotating PDFs. Its the only PDF viewer that can open and interact with all types of PDF content ...