Using TBS to generate a PDF from PDF template?

Do you think it's possible to do the following:

1. Generate a blank PDF file with data placeholders.
2. Replace the placeholders in the PDF file with TBS tags:  [var.somedata]
3. Put the login in a PHP file.
4. Load the PDF template file.
5. Display/print a new PDF file.

I'm going to experiment and see if this works.

I've tried to have a look but its seems that default data of PDF forms are encrypted or compressed in the PDF file.

That explains why it can't be made to work correctly. Thank you.