Feature request: Add "Notes" and "Callout" tools to pdf annotations

[raindropsfromsky]

In any pdf reader, the "Notes" and "Callout" tools are the most basic pdf annotation tools.

• The Notes tool leaves a post-it type of small sticker on the page, and we have to hover the mouse on the icon to see the full text.
• The Callout tool is like a text box, but with a leader line drawn from the text-box to the point of interest in the pdf file.

[GerHobbelt]

*Note to me sounds like it's already covered by the Annotation Box**. Your view on this?

[raindropsfromsky]

Actually, all three are needed for different applications:

A note is like a box, except that its text is not directly visible. (You have to hover the mouse on it to read the message). But it has the advantage of being small. So when space is tight, a note is the best compromise.

A box needs some space for the text to fit in. Its text is always visible, so it is used where the author wants the reader to see the text without hovering the mouse. It is used as a general note for the page.

The Callout is just like a box, but with the addition of an arrow that can be used to point to specific text, or to a specific part of an image. I use it extensively.

The note and box do not have an arrow, so they cannot be used to point at specific part of text or image.