Documents need to apply Azerbaijan Work Visa For Pakistani
As you are applying for Azerbaijan Work Visa For Pakistani through www.eVisa.com.az, it will ask to upload a digital copy of your original passport. Keep that ready to complete the process.
Your Email address is the only thing through which the embassy will communicate with you. Make sure that, the address you have given is correct.
There is several options are available to complete your payment. You can use debit or credit card for completing the process. Apart from them, you can also use your PayPal account for payment.
One thing is to keep in mind that, if you want to stay ten days exceed, you have to register with State Migration Service.