Of course. When you fail to upload your flipbook online with PubHTML5 desktop client, you can choose to reupload it. The procedures are quite simple.
Step1. Reupload the flipbook.
Click Upload Online button on the main toolbar, click More and then tick Override an existed book option,It will automatically go to a pop-up window.
Step2. Select a host item to be overrided and publish.
When you select a host item with status shows uploading, click select, you'll go to to another window, click Publish to fulfill your reuploading.