I recently used cudasign on my iPad at someone's recommendation to sign a PDF file. Worked fine, although my online signature was unintelligible.
Here's another option (a message from my boss):
The easiest way I know of to add signatures from a Mac is to save the document to PDF, open it in Preview then Tools --> Annotate --> Signatures ---> If you don't already have signatures stored, you use "Manage signatures" to get to an option of either scrawling your signature on the trackpad or holding up a signature to the Mac's camera to get that saved.Then any time you need a signature, just go to the one you want, it will appear on the PDF. Scale it and move it into place.Voila!
Doesn't matter if it's PC or Apple. Adobe has a signature tool. I don't have it in front of me right now, so I can't recite all the steps, but you can search for the instructions. You my need the Pro version.
Thank you, but unfortunately Adobe Pro is needed, and it costs $12-14 per month. I was hoping for a less expensive solution.
http://www.documentsnap.com/acrobat-reader-sign-pdf/
or
http://www.howtogeek.com/164668/how-to-electronically-sign-documents-without-printing-and-scanning-them/
or
http://www.howtogeek.com/215485/sign-pdf-documents-without-printing-and-scanning-them-from-any-device/
Thanks, Steven. Unfortunately, HelloSign is no longer free after 3 signatures per month, but Adobe Reader looks like it has possibilities. I'll give it a try. ETA It works!
I'm tired of downloading, signing and then uploading PDF files. Not sure what is the easiest secure way to do it online, any suggestions?