Edit text/image in a PDF page

[CrysK]

I have a vector pdf file. The text can be copied (as raw text).
Is it possible to edit the text here and e.g. turn a "Here is a text" -> "Here is more text"?

Next to it is a picture on the page. Only this picture should be made smaller or moved. Is this possible?

Thank you very much!

[CrysK]

I want to have something like this:

Here is the example:
TestFile.pdf

Is this possible?

[CrysK]

It is sad that this is not possible and that no one can answer.