Annotation tools

In the top-left of the annotator window you’ll find 15 tool-buttons.

The annotator has a range of simple graphical tools for annotating the image. Click on the above image to see the key-codes associated with those tools. At first glance these may seem confusing, however, they are just the position of the button translated to the corresponding position on a standard qwerty keyboard. These were chosen so that you can leave your left-hand on the keyboard and your right-hand on the mouse. So the middle 5 buttons are just the keys that lie under a left-hand on its home-row: a-s-d-f-g. The top 5 buttons are q-w-e-r-t, and the bottom 5 are z-x-c-v-b. Note that the keys are arranged in a similar manner but for the right-hand when you choose the left-hand mouse option on the marker window.

Let us start with the rightmost column, and work left:

icon tool name key click shift-click ctrl-click
pen Pen tool t red-pen highlighter pen-with-arrows
text Text tool g enter text    
line Line tool b line single-arrow double-arrow
comment-up Comment tool r previous comment on list    
comment Comment tool f comment / next-comment    
comment-down Comment tool v next comment on list    
cross Cross tool e cross tick question-mark
tick Tick tool d tick cross question-mark
box Box tool c box ellipse  
redo Redo tool w redo    
undo Undo tool s undo    
delete Delete tool x delete / area-delete    
pan Pan tool q pan view    
zoom Zoom tool a zoom in zoom out  
move Move tool z move object    

Here we show a screenshot of the annotator in compact view with all the graphical elements shown.

Notice that fewer buttons are shown, but we now give a button for the delta-tool

delta Delta tool 1,2,..,0 set delta    

Text tool

The text tool allows you to enter multiline text. Clicking onto the page-image either starts a new text-object, or edits an existing text object. The enter-key produces a newline, while shift-enter finishes the text-object.

If you start your text-object with tex: or TEX:, then when you complete the comment, Plom will run it through LaTeX. Note that you will still need to enclose mathematics with “$ $” or “\( \)”.

Comment tool

See this page

Out of bounds

If you draw or move objects outside of the page-images then Plom will warn you by highlighting the object in orange. It will also warn you that you have objects outside the page when you attempt to finish the annotations.