1. First of all, to have a PDF document.

2. will open PDF documents, use the toolbar used "stamp" tool. The following chart:

3. the mouse will become shape.

4. in the place you need to click the left mouse button, can be sealed with a seal.

5. in the seal on the right mouse button click to show menu on the operation of a seal. The following chart:

6. Select "delete" can be removed to cover the seal.

7. select Properties to open the properties box seal. Below

8. may be in the "categories" in the choice of other seal, click OK after the choice of a good recognition.

* Note: in the choice of the other seal, the seal will be after a seal the size of the previous changes, so after the choice of a good seal, it should be deleted after a re-cap, so that is the default size.