How can I take screenshots of YouTube videos in full screen?
Bookmarklet to Hide All YouTube Video Progress/Toolbars with one click
(makes it easy to get a clean full-screen HD screenshot)
To ADD the Bookmarklet:
highlight the the text in the next box
javascript:(function(){var goaway=".ytp-chrome-top,.ytp-chrome-bottom{display:none;}";if("\v"=="v"){document.createStyleSheet().cssText=goaway}else{var tag=document.createElement("style");tag.type="text/css";document.getElementsByTagName("head")[0].appendChild(tag);tag[(typeof document.body.style.WebkitAppearance=="string")?"innerText":"innerHTML"]=goaway}})();drag the highlighted text to your browser bookmarks toolbar
- rename the newly created bookmark if desired
To USE the Bookmarklet (to remove progress/toolbars):
- load any YouTube video
- click the bookmark
- All progress/toolbars are gone
(EVEN WHEN PAUSING VIDEO)
To RESTORE all toolbars:
- refresh the page
To CONTROL VIDEO (without buttons toolbar):
- Full-screen: double-click the video
- Rewind/Fast Forward: left/right arrow keys
How about not pausing and hitting PrtScn when the timing is right. If that is not an option Windows 7 has a tool called Snipping Tool that will let you chop off the top UI bar, of course at the cost of losing that much video area.
The only way I could find was simply to download the video from Youtube, play it in any media player and take a screenshot from there (either with the media player's screenshot option, or PrtScn on the keyboard).