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Dear Sir or Madam,


  1. What do we want to do?

We want to protect some documents, including but not limited to word, excel, mail, pdf, etc.
For example, adding read-only permission to word and the password to open the file, these actions can be done manually by mouse operation, but we need to use the program to achieve automation

  1. Regarding ASPOSE, what functions do we care about?
    a. What types of files can be protected, such as office documents and other document types
    b. We can implement protection types. Different types of document protection may be different. For example, word copy supports setting open passwords and setting read-only; mail (mail everywhere.msg documents) settings do not allow forwarding

Looking forward to hearing from you.

Best Regards,

Josie Li


In order to protect PDF documents using Aspose.PDF, please check the following section in API documentation:

Please also see the documentation on how to password protect or encrypt Excel workbooks as well as protect worksheets in Excel Workbooks.

Furthermore, we have created a thread in Aspose.Words category where you will be assisted with respect to securing Word Documents. We will be sharing further information with you regarding protecting or securing Email files shortly.

Thank you for posting the inquiry.

As for Aspose.Slides, please see the following article: Password Protected Presentation. This article describes how to use password protection and write protection for PowerPoint presentations.


Could you please ZIP and attach your expected MSG file here for our reference? We will then provide you more information on it.