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firstly you need use a word to pdf converter to convert word to pdf. Word to PDF converter is the best solution for converting Word to PDF, doc to PDF, text to PDF, Converting documents from Microsoft Word to PDF format gives you the ability to email documents to customers in change-protected mode, to replicate presentation materials in print shops without any troubles with missing fonts or broken layouts. Learn more from: http://www.pdf-converter-creator.com/word-to-pdf.h... After converting , you can sign a word document to pdf.

Unfortunately the form has to be turned into a PDF through Acrobat Pro, not Reader. Reader only allows you to read/view the document unless it was created as a fillable form. A straight conversion from Word to PDF does not establish the fields you need to be able to fill any part of the form, including signatures.

Adobe reader is only for reading or viewing PDF files, not supports to edit PDF;maybe the acrobat pro version could help, but it too expensive.

Another way is to convert your PDF to word back by a pdf to word converter like Simpo pdf to word converter, then use their free pdf creator to create pdf from the word file.

PDF to Word: http://www.simpopdf.com/pdf-to-word.html

Free PDF creator:http://www.simpopdf.com/pdf-creator-lite.html

Hope this helps!

you can convert word to pdf firstly, then ---