put different tools (customizable) ie pen, rubber, highliter on the first level palette

I love Papyrus, I use it constantly on my phone and tablet, both for taking notes and marking up PDFs. The number of clicks required to change tools is a constant source of frustration and the one reason I still look at other apps and consider switching. Make the toolbar always visible so a single click changes the tool - that would be a huge improvement.

+1 Should be prio. 1 for the next update!

The app is great otherwise, fast PDF-import/export, simple and very quick. Unfortunetly it's pretty cumbersome to go between selection of tools.

Double that.
Actually, I think that the right approach would be to allow defining a few slots (presets, favorites) for the most often used tool configurations and have them accessible with a single click. Many applications use this pattern for decades and it works, so why not use something tested?
It would help me tremendously - I usually use 3-5 such combinations over and over (e.g. a black fine point pen, a red wide point marker and a highlighter).

I think at a minimum the pen and highlighter tool should be separate. I constantly switch between this two tools while annotating PDFs. It would be nice if we could have preset parameters for each tool as well.

Essential!

Instead of fewer clicks, it could be faster and easier to manage clicks.

How about double tap on the same particular tool would close menu and would allow you to use that tool immediately.

As an alternative to your listed items 3 and 4 you would need fast double click on specific tool.

Great idea to line up the tools on the toolbar instead of inside a menu

FYI, while wrting (in pencil mode), you can always use your finger as eraser - I found this is quicker than clicking...

Yeah, I'd rather see all the tools lined up in the action bar.

You could get fewer clicks if we customize it by adding more items to the toolbar. I have space in my toolbar that could be used.

My idea:
Press tool, hold, drag to preferred tool, let go.
Easy and fast way of doing it.

Maybe you could have a settable default for each selection (ie if I choose eraser, it defaults to the regular eraser with a certain size. Then, if you want to change the eraser type/size, you could Long-Click on the eraser to bring up the next set of options.

Make it possible to erase anything by just scrumble on it with the pencil tool
For example you can check it on one note in thinkpad tablet.

Papyrus is really nice and fewer clicks when using would improve it even more!

Refer to app "write". Although it has poor interface but it's great to write with pen: easy to erase, ruled note, etc

I have Samsung Note 2. While writing with S Pen, I can use my finger to erase (which is only good to erase larger area), then continue to write with S Pen. However, I also find the need to have a eraser button at bottom tool bar so that I can have finer control to erase only the things I want to erase.

I usually use "Pen", "Selection" and "Eraser".

The toolbar as a whole could be reworked. Look at some apps like photshop and sketchup that do a marvelous job of minimizing a huge amount of tools while exposing those needed quickly.

YES!! Just switching between eraser and pen would be enough. It's common, and takes too many clicks right now.

PLEASE PLEASE PLEASE!