¿Quieres miles de fichas gratuitas (y cero distracciones)? 
Creating worksheets
On the other platform I could work on a worksheet and I could reload the pdf / png file whilst working on it without losing my elements. Now, this is not possible which is a drawback since I cannot modify the pdf to my liking if I change my mind about something on it. Another thing I found is that in the past were I to accidently close the browser or have a power cut, when I opened and logged into liveworksheets the sheet was still there with all the elements to continue editing, this does not happen now, or am I doing something wrong?
Yes, the good news is you can always save a worksheet and go back to edit it at any time. I would recommend saving on occasion or when you need to step away from it so you don't lose your work.
I am having the same problems. Sometimes I realize I have a typo on the original worksheet and would like to change and upload without having to redo the entire process of inputting the answers and I can't seem to be able to do it.
@Silvia your suggestion of updating a worksheet is a good one that we've been working on.
TeacherARG
Emilia, Silvia, Jason!
It IS possible to re-upload the original file.
The second tab says: Edit Image&Info. Remove the original file and upload the new one.
I did it yesterday. It worked for me.
ahhhhhhhhhhhh i shall try it out!!
thanks a bunch!
Thak you teacherarg