How do you convert a Docx file to a PDF containing fillable form fields?
Note, I'm not asking how to convert a Docx to PDF. That's trivial using Libreoffice or the print dialog. However, that generates effectively a flat file. PDF supports the notion of "form fields" that a user can fill in and then save their changes as a new PDF file. However, other than Adobe's proprietary tools, I can't find a way to do this on Linux.
There are a few Linux tools, such as the commercial product Master PDF.
However, there are many online tools, such as JotForm, PDFescape and PDFfiller, that let you compose a PDF form online or submit a document. A screenshot of PDFescape's interface is below.
It is likely that some Windows OS PDF tools run under wine. About half the Windows applications I've tried, such as IrfanView and 7-Zip, run quite well in wine, though some others do not work as well, and some won't even start.
Caveat: I've not tested the Linux application or the online services.
