Hello Guys I have a Windows 2003 Domain. I would like to use PKI to digitally sign documents - to start with. I'd like the document to be accepted by two different people, such as e.g. an accountant and later Chief Financial Officer. To do this I would like 2 Tier Model PKI 2008 R2 on servers. My question: Does PKI allow to sign a document by two different people? Thanks for every advice !!!

Yes it is possible and PKI as such does not bother about how many signatures you put on one single document or file. So the question is more about if the application you are using does allow for more than one signature or not so the question is what application are you going to use to sign the documents? /Hasain

Hi Hasain I mean about MS office docs like word, excel and pdf docs

You can insert multiple signatures lines into Word documents and Excel workbooks in the office suite: http://office.microsoft.com/en-us/word-help/add-or-remove-a-digital-signature-in-office-documents-HA010099768.aspx#BM3 For PDF please read: http://help.adobe.com/en_US/acrobat/standard/using/WSAC8084C2-14F7-4841-9EF8-92106D22C3DB.w.html /Hasain