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I am looking for an iPad app (Android app references will also be considered useful) which allows reading PDF files and annotating them with a stylus, resembling the experience I would have with a pen and a piece of paper as closely as possible.

This requires:

  1. Not enforcing to go through button clicking, context menus or popups every time I want to write something. (i.e. add annotation, accept annotation). It completely breaks the reading experience.

    I don't even care if that kind of a step-based work-flow is better if you want to edit/delete the annotations. I would be happy even if deletion/edition was not allowed, a good old cross-out would be enough for me.

  2. The writing experience should be snappy and responsive. I don't want lines to follow my stylus-tip as I write, like laggy comets in orbit. A good example of good behaviour in this regard is Wacom's Bamboo Write App

Optionally it would be simply awesome if it was had handwritting calculator capabilities like MyScript Calculator. I am used to make calculations in the margins, when reading engineering or math-related books.

I have tried Goodreader and iAnnotate but neither of them comply with (1) or (2). Any suggestions?

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up vote 1 down vote accepted

I found it! Good notes does exactly (1) and (2)

You can write without accessing menus and browse the document at the same time by using two-finger gestures (to distinguish them from the writing itself). And writing is really snappy.

It also happens to have a great feedback system, so I added a suggestion to add a handwritting calculator.

The only missing features (for my taste) are margin cropping and automatic Dropbox synching.

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You can do this with Adobe Reader by Adobe There is a version for Andriod too, and it is free as well.

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No you can't, specially not (1). You need to click buttons in order to annotate and then save the annotations. Please read questions carefully before answering. – fons Feb 15 '13 at 23:21
My bad. Sorry I am not perfect. – TheXed Feb 16 '13 at 21:31
No problem :) :) – fons Feb 16 '13 at 22:23

I use my iPad all the time at work and during meeting, it's important to import, make annotation and share my files with people. To do this I use Beesy, really nice app, I can read my pdf files on iPad easier, it's very good tool for profesional: I saw they are on Trunk Evernote so I think it's can be interesting.


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I don't think it complies with (1). – fons Jan 13 '14 at 23:48
I watched the demo, I couldn't see any annotation of PDF. – Graham Perrin Feb 21 '14 at 19:47

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