Whiteboard Overlay

About

Whiteboard Overlay adds a simple drawing layer to the current webpage so you can mark up what is on screen without leaving the page.

Use it to:

draw on the current webpage with pen, highlighter, and eraser tools
adjust color and brush size from the side panel
select part of the visible page before export
save annotated screenshots as PNG
copy screenshots to the clipboard
export the visible page and annotations as PDF
optionally add a second PDF page with visible page text context
How it works:

click the extension icon to open the Whiteboard side panel
click Enable drawing on the current tab
draw directly over the page
export the visible result when you are done
Notes:

Whiteboard Overlay works on regular webpages that Chrome extensions are allowed to access
Chrome blocks extensions from running on some pages such as internal Chrome pages and the Chrome Web Store
screenshots and PDF files are created locally in the browser
the extension does not upload your page content or drawings to a remote server