[Tutor] Sending email as html

[Alan Gauld]

"Glen Wheeler" <gew75 at hotmail.com> wrote

>>> If you have used tried using any PDF editor for more than 
>>> correcting
>>> typos, you'd still consider it as a read-only document.
>>
>> True. but for contracts or invoices just changing a 1 to a  7 or 
>> vice
>> versa can make a big difference to the money owed! And very
>> little difference to the layout.

>  Well if it's just a matter of changing one digit this isn't so 
> hard, since PDF files are not very hard to edit with a simple text 
> editor.  (Never have

That's true if you understand the PDF format but its non trivial
and way beyond most computer users. But PDF has never been
absolutely secure, just better than Word documents or plain text.
If you really want to check that the doc has not been altered
you need to use digital signing or similar. PDF is just a
discouragement.

Alan G.