PDF editor

Question here.  I'm doing some web design and I have to create a training page for new employees.  This involves a presentation I've created and then a test afterwards however I have to have a printable certificate that I can produce after the trainee passes the test.  I’ve found an acceptable format but it’s a PDF and every PDF editor I’ve found won’t let me save any changes I’ve made because it is copyright protected.  Does anyone know of an editor that is free that will not pose this problem or even better a certificate that is already in HTLM format?

Thanks.

>>8
PDFs are worse than Office formats because they are both propietary, but you can edit, copy, get vector data and take advantage from Office formats. And of course, both PDFs and Office formats are worse than open standards.
You may be happy with shitty page layouts, shitty fonts "designers" use, reading a book on black on white (which is as if you spent hours staring to a light bulb), and not doing anything useful with your octet-streams, but I do want to do something useful with my octet-streams.

>>10
Truth, but still undesirable when you could use World Wide Web browsers to browse the World Wide Web. Is it that twisted, this idea?