There are general requirements for all uploaded documents:
photos should be taken from original documents with information in Cyrillic or Latin letters
are accepted in formats: *.jpg, *.gif, *.pdf, *.png (files must not be password protected, or the password to such a document must be provided in addition)
file size should not exceed 20 MB
must be in good quality and in color only
should not contain photographic artifacts such as flash, blurring, refraction of the document
should not be edited in the editor
