Hello Sir,

Don't worry it won't create any issue whether it is uploaded in horizontal alignment or vertical alignment, but what matters is it should be uploaded as per the specifications prescribed by NTA, also given below :-

-->> Passport size photograph (10-200 Kb in JPG format),

-->> Signature (4-30 Kb in JPG Format),

-->> Class 10th certificate and category certificate(50-300 Kb in PDF Format),

-->> Left-Hand Thumb impression (10-200 Kb in JPG format) and

-->> Postcard size photograph (4"*6")(10-200 Kb in JPG Format).

For more details :-

https://medicine.careers360.com/articles/neet-photo-size-format-documents

To solve the Test series for NEET 2021 for better finishing of preparation, you can get the Test series for your ward from the link given below :-

https://learn.careers360.com/test-series-neet-may/?product=56&icn=test-series-neet-may-2021&ici=exam_page

I hope this information helps you.

Good Luck!!