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### [![](https://help.folia.com/hubfs/Folia_lettermark_lifted_for_white_bg-1.png) Folia Our newest product for taking digital annotation to the next level. Markup files of any format, collaborate in real-time, and work across devices.](https://help.folia.com/knowledge/folia?hsLang=en)

### [![](https://help.folia.com/hubfs/iA4Icon.png) iAnnotate Annotate PDFs with an intuitive tool for easy markups and an efficient workflow.](https://help.folia.com/knowledge/iannotate?hsLang=en)

### [![](https://help.folia.com/hubfs/iA%20Enterprise%20Logo.png) iAnnotate for Enterprise Robust enterprise solutions for BlackBerry, Microsoft Intune, MobileIron, and other MDMs.](https://help.folia.com/knowledge/iannotate-for-enterprise?hsLang=en)

### [![](https://help.folia.com/hubfs/iA3-Icon-1024.png) iAnnotate Version 3 Version 3 paved the way for the advanced annotation tools we make today. We recommend migrating to iAnnotate 4 as routine updates ended in 2017.](https://help.folia.com/knowledge/iannotate-version-3?hsLang=en)

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