Is there a free PDF Editor available?

[Aprisa]

We need to occasionally edit an invoice of ours that has been sent without a valid PO, we have been writing them on and scanning but that is a pain.
As it is rare, i don't want to spend any money doing this but all of the so-called free versions I have looked at are not free at all an require the full versions to be installed to use the Edit feature.

Thanks

[Aprisa]

Thanks nyt
PDF Gear seems ok, a bit clunky to edit text but adding is fine and will help a great deal.

[Aprisa]

jeremyc said:

hy not go back to the source document, edit it there, and save as a new version of the PDF? Surely that's better practice than modifying the originally created invoice.

Hi Jeremy
Our software does not allow any modifications to invoices onced finalised, I have asked for the facility just on Ordernumbers but was met with te resposonse that it would cost me quite a lot to have the bespoke software altered!

[Aprisa]

Thinking about it I may have misunderstood your replies.

I am going back to the invoice we have sent which is saved as a PDF, I simply want to edit our sent invoice and add a PO as the customers will not write it on themselves and an altered scanned copy looks bad.