A. You can combine PDF documents by either of the following two methods. 1. Open the target PDF document. Click on the Pages tab. Open My Documents and find the second PDF document. Drag the document and drop it on the target document Pages tab. OR 2. Open the target PDF document. Choose Document/Pages/Insert from the Menu bar. In the Select File to Insert dialog box locate the source PDF document that you want to insert. Click Select. In the Insert Pages dialog box,specify the location and click ok.