I would like to be able to type information  on to various PDF forms.  Some form are "writeable" on line, but most are not.  [I believe that one can type on some IRS tax forms.  Such a facility does not seem to be available for Canadian taxforms]

It would also be nice to save these filed out forms in a file on my computer.

My guess is that some software exists to enable some or all of the above. 

Please provide suggestions on what my options are.

Thanks,

JM