If you wish to update your flipbook without changing the URL, follow these steps: Step1. Login in, click on the "MY PUBS" option on the left bar, and select the publication you're going to design. Step2. Click the "General Settings" button. Step3. Go to the "RE-UPLOAD" tab and browse your new PDF file, or simply drag and drop your PDF file. Step4. After uploading your file save it by clicking the "Save and Close" button.