Hello,

The handwritten declaration need to a digital image and as long the uploaded file is as per the specifications you will not face any problem. It need not to be necessarily a scanned image even if it taken in phone camera it is fine but it should be clear. The handwritten declaration should be in English clearly written on a white paper with black ink. It shouldn't be written in capital letters. The file specifications are as follows

• Format: jpg / jpeg
• Resolution: 800 x 400 pixels
• Dimensions: 10cm x 5 cm (Width x Height)
• File size: 50 KB to100 KB

If the uploaded handwritten is as per the given guidelines your application is not going to get rejected provided you have submitted the complete application.