# Browser-generated pdfs
Many pdfs can be downloaded from the Bank's internet banking websites. However in some cases the pdf that is produced is generated entirely within the browser. These pdfs don't have an "original" form the pdf writer will depend on which browser is used - and this can vary greatly (Internet Explorer, FireFox, Chrome, Brave, various mobile browsers etc...).
These types of statement have the highest error rate because the internal structure of the pdfs vary greatly depending on the browser that was used. It's also not great for modification detection because the statements are much more easy to modify in the browser and then there is no automated way that we can detect that the statement has been modified.
One example of this type of statement is NEDBANK_ACCBAL_WEB.