I am developing a simple pdf editor for a university project, I use the Acrobat SDK 1.0 API, can I edit the pdf and add fields but can not move them from position to document ?, which should enable it to work, use Visual Basic .Net

Which method are you using, and what kind of objects are you trying to move? There are many types of textbox, please be precise about how they were added.

When the pdf document is opened with acrobat DC, objects can be moved as (textbox) within the document, but when I open it from the application with the Acrobat SDK API, it only lets me add them but I can not move them in the document !. Thanks if you can help me !.

You might also want to check out iTextSharp for .NET.

Ok, then you need the Acrobat DC SDK. This includes documentation on the JavaScript methods to create fields. You can use the VB:JavaScript bridge to run them. Special forum here: Acrobat SDK

I have the Adobe Acrobat Pro DC 2015 version, before acquiring the license to test its works the power to position the fields in the document !, Thanks

So far as I know there never was an Acrobat 1.0 SDK. You need the SDK for the version of Acrobat you purchase or subscribe to. What version do you own?