I could see that there is in ToolManager.java the constant e_digital_signature and also there are some strings which start with tools_digitalsignature_ but the toolbar does not present any button for this, The same for e_rich_media. Are these not finished tools that will be enabled in the future or what?
Those are ready to use tools. However, we only added commonly used tools in the annotation toolbar.
For example rich_media is for playing supported media format on a PDF, that does not need to be added to the toolbar. Only annotation creation types are more commonly used in a toolbar.
The source code is provided for you to customize your own toolbar.
Hope this helps.
Software Developer | PDFTron Systems, Inc.
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