TagNotate is a PDF viewer and annotator with the unique ability to assign tags to annotations - you can create as many different tags as you want, allowing you to associate with each annotation whatever kinds of information are important for you. By selecting one or more tags, you can collect together all the annotations that share those tags (across a single document or across multiple documents), and you can even use tags to select which files are shown in the file browser, or to select the annotations that you want to export to other apps or to email.

See TagNotate in action: Search "TagNotate" on YouTube.

Other PDF viewers allow you to annotate your documents with highlights, underlines, and notes. But TagNotate allows you to tag each of these different kinds of annotation.

Need to keep track of which documents mention different kinds of things? Highlight the relevant bits in each document, tag those highlights, and see the tags listed in your tag cloud; you can then tap on an individual tag, or on more than one tag, to retrieve those highlights from each source document. By highlighting and tagging information that matters to you, you can easily go back to this information later by selecting the appropriate tags.

The more you tag the highlights, notes, and other annotations in your documents, the more information is instantly available, personalized for you. Selecting one or more tags initiates a near-instantaneous cross-document search that lets you collate important information. Single or multi-document overviews, based on the tags you have selected, let you easily extract what you need and copy it to the clipboard or an email for sharing with others. See case studies at

Please send bug reports to We respond to all emails. And if you like TagNotate, please don't keep it to yourself, but consider reviewing it on the App Store for others to see. Thank you!

Tagnotate. Innovation in Annotation.

What’s New

Version 2.0.3

Fix issues related to macOS 10.13 (High Sierra).

Ratings and Reviews

3.3 out of 5
3 Ratings

3 Ratings

koparosti ,

A start

This is a start on a pretty useful app. It is one of a burgeoning class of apps that annotate pdf files for those of us who must read lots of pdf documents. The tag approach is fairly unique. It falls down mostly on dependability, weak on-boarding, and most importantly - export is poor at best. It is possible to export the text of the highlighted documents but not the box annotations - those just disappear when you copy to clipboard. Exporting even the text is a multi-step process. If this were fixed I would probably purchase the upgrade as the tag organization is superior to most of the alternatives. At some point one of these apps (Marginnote, LiquidText, Diigo, Lumio, plus multiple others I’ve tried) will figure out that the old index card approach to research management lasted so long because of its power as a research tool. When one of these apps lets me export individual annotations with tags or keywords that also capture the reference data for the pdf you are reading in a convenient manner to a powerful notebook tool - then wow that will be the super app of this niche. At the moment MarginNote is the best of class - even with its incredibly ugly UI and cumbersome export. TagNotate has the potential though to be better if they can improve export.

stanblues999 ,

Always crashing

I've given it two stars because I like the concept but really unstable and unusable. I thought my computer might be at fault. After reinstalling a fresh copy of crashes anyways. Waste of money!

JimPFL ,

Great for finding things across multiple pdfs, or in a large pdf.

I used tagnotate several days ago reviewing a 250 page long document. It worked flawlessly. Since then I’ve reviewed several other documents as well, and it continued to work very well. In particular I liked the way the export of annotations worked to the clip board, whch I can paste into an email and share with others for detailed feedback.

I really like the idea of tagging annotations and being able to find
them later across multiple documents, then viewing each annotation as a”snippet” on the annotation search page. I think they are are on to something here. The ability to print just the annotations including selections of the origonal documents having highlights, alongside your notes and tags is quite usefull for discussing your thoughts on a document with others.


Tim And Gerry Inc.
2.7 MB

macOS 10.12 or later, 64-bit processor



Age Rating
Rated 4+
© 2015-2017 Tim and Gerry Inc.


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