New set of toolbar icons for PDF viewer tool required

Hi all, we need new icons for our pdf viewer tool. Attached you will find the screenshot with our current toolbar. Another screenshot is from PDF-XChange Viewer and this is an example of what I find a good toolbar. It must not necessarily be like this, it is just what I like. Some more requirements: 1. There are 23 icons. They all must be replaced and they all must be of the same style. 2. Every icon is 24x24 pixels. The actual picture should be max 20x20 pixels. Together with 2 pixels margin from each side it makes exactly 24x24. This is to put some space between the icons in the toolbar. 3. Fro every icon there should be 3 variants: a) Disabled icon b) Normal icon c) Exactly as b), but with blue background. See attached example ([login to view URL]) of PDF-XChange Viewer icon (there with yellow background) 4. The format should be png. 5. The icon for visible signature ("Sichtbare Signatur" in the image) should represent something like a pen, a feather or a hand with pen. The user must understand, that he will create a signature with this button. 6. The icon for invisible signature ("Unsichtbare Signatur" in the image) should be basically the same image but somehow represent, that the signature is invisible. Maybe it should be a dashed version of the visible signature icon. All together must be of the same style and look professional. That's all. Best regards Dmitry Lakhin