PDF Markup Software

Unable to find a simple and effective way to markup
PDF files?

Reactiv Makes PDF Markup, Viewing and Sharing an Easy One-Step Process

PDF is integral to most workflows, but marking them up with notes and annotations often eats too much time and effort, forcing teams to less efficient ways of collaborating.

Reactiv can natively open PDF files so that you can get to viewing, marking up and sharing documents right away as though it was a physical paper document.

Pin Camera. Open Files. Markup Content.

Write, draw or mark-up any file (including photos and videos).


Familiar, smartphone-like touch user interface with intuitive touch, tap and pinch-to-zoom gestures

No obligation. No credit card.

With Reactiv, Marking Up PDFs is as Natural as Writing on Paper

Native Inking

In Reactiv, you can open, read and markup PDF documents in their native format. There are no limits in terms of how you can markup your PDFs – be it writing, drawing or sketching.

Reactiv is also built with a feature that lets you save your markups as new copies of the original file and in its original format – i.e. PDF.

Reactiv will automatically add timestamps to these new copies, which makes sharing and document control an easy process.

The Best PDF Markup Software for Comparing PDF to Non-PDF Files

Reactiv can natively open, read and enable markups for almost all commonly used file formats. You can compare a PDF on one hand to a PowerPoint deck, web page or even multimedia without having to jump between different apps (or even having them open).

Intuitive User Interface

There’s no need to bounce in and out of different apps, folders and web pages just to annotate a few PDFs.

With Reactiv, you can batch together multiple PDFs and other files into one folder and access all of them in a distraction-free workspace for marking-up and editing.

No obligation. No credit card.

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