There are files with fillable but not savable forms. Acrobat Reader does not allow save such documents.
What free software can convert fillable forms pdf to fillable and savable forms pdf?
What free software can convert fillable forms pdf to fillable and **savable** pdf
formspdf
Related Solutions
Ancient Question trumped by passage of time...
Acrobat Reader XI allows for signing documents by several methods including a scanned image.
You can then send the signed document by Email, Fax, have other sign or simply save a copy.
The file now has the signature included within it. You don't even need Acrobat itself, download PDFCreator from SourceForge to generate your document that needs to be signed, send it to the person needing to sign. They open it in Acrobat Reader XI, attach the signature and send it back to you for printing for your records.
There are a few options for digitally signing PDF files. You could use Acrobat Standard for this, but if all you want to do is to digitally sign PDF files then Nitro PDF or Foxit Phantom are more reasonably priced solutions (approx $99, cheaper if you find a special deal).
As far as free solutions go there is Signature995, which is supported by ads, so be warned.
Best Answer
This thread on the Adobe forums indicates that there is no such free software. You'd have to buy Adobe Acrobat, and use LiveCycle Designer, which is included in the bundle.