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

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.

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.

windy_week ,

Incredibly useful app for folks who do research!

I’ve been using this on the iPad and have been anxiously awaiting the laptop version because I do most of my research/writing on my laptop. It is *incredibly* useful to be able collect annotations across pdfs. And what a happy surprise that when I imported 50+ pdfs, some of which I had highlighted in Preview, the highlights (many of which I had long forgotten), all appeared under annotations! It was so useful to be reminded of what I’d read/highlighted! I’ve actually also found that this App is fantastic for another reason — when I tag something, it really forces me to think about how that bit of text fits in with the rest of my knowledge, so it helps with making connections. I have had some problems with highlighting across pages, but then I tried that pdf in Preview and realized it didn’t work there either.


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.


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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