There is an add-on for electronic signatures, though I've never used it and thus cannot endorse it. May be something for you to check out.
Thanks for helping us! I did my own research before bumping to this thread, and I found a different solution. I needed to send a job application and I had problems filling in the form that they've sent me. I could not let them know that I have problems with editing PDF documents, because in my CV it said that I'm capable of doing stuff like that. I did a thorough research and I managed to find a website with that exact form, it was easy to do it after that. They liked me and I am starting there soon.
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