You can use Adobe Acrobat Reader to add a signature to your order. Download it from the App Store/Android Store.
The process described here will not import the signed order into Zedonk, but you can save it to your device and email it from your device to your office.
Locate the order and click [...] chose view and click on download button
Find the Adobe Acrobat App to capture signature
Choose 'Copy to Adobe Acrobat'.
The order opens in the App you have chosen. Click on the pen symbol
Click on the signature symbol
Add signature
Amend the signature size and location
