Document will only open in read-only mode

[HSI Victim ID]

I created a .pdf document from a Word document in Adobe Acrobat Professional 10.1.1. When I open the .pdf it will only open in read-only mode.  I want to change the security settings to prevent editing before I send it out but the File>Properties>Security>>Security Method is greyed out and set to "No Security."  I have tried certifying and signing the document and even placing in a secure envelope with no luck.

Help.

Thanks in advance.

[Dave Merchant]

Are you creating it with PDF/A mode selected on the Word PDFMaker preferences? PDF/A documents open in read-only mode even though they have no security.

[HSI Victim ID]

Thank you Dave. 

From MS Word, I am choosing Save as Adobe PDF.  In the Save window I reviewed the "Options..." and found PDF Options including

Convert document information  (checked)

Create PDF/A-1a:2005 compliant file  (not checked)

Enable Accessibility and Reflow with tagged Adobe PDF (checked)

Apply Security (not checked)

Create Bookmarks (checked)

Convert Comments (not checked)

I checkmarked Apply Security and attempted to save the document, however, received the following error:

PDFMaker cannot apply security when PDF/X or PDF/A compliant job option is selected.

I do not have the Create PDF/A-1a:2005 compliant file box checked so I'm not sure why I'm getting that error.

[HSI Victim ID · Accepted solution]

In Adobe Acrobat I found a solution.  Edit>Preferences>Documents  PDF/A View Mode  I chose "Never" for View documents in PDF/A mode.  This took care of my issue.

Thanks.