If you want a page image, then use
and drag the mouse over what you want to save into the paste buffer.
Open an editor (like MS Word, or Word-Pad, or Paint) and paste the image into it.
If you want the text and the PDF is in text format, Highlight what you want and paste it into Word or Word-Pad and save.
Also, you have to open the PDF with the appropriate PDF file format, and the PDF specification does not specify this. So, if you're going to open a PDF without knowing how the PDF file format looks like, you might as well write your own “PDF file format parser”, because you already know that the way to read a PDF with a program is to parse it and read the bytes. I'm using Notepad++ as the PDF editor today, or the Windows text editor, which I can do this because it is not restricted by a PDF specification. You can have a PDF file editor available to you if you want, and if you know how to make it a very convenient application, but for now, you better just use notepad++ to do whatever you want. In particular, if you're going to read PDF images or images formatted with CSS, you're.