The total number of copies in which you include the image should not exceed 500,000 copies for the Royalty Free license
. This doesn't apply for electronic use. If you exceed this number, you will have to acquire the I-EL (increase maximum copies) extended license
which allows you to print unlimited copies. The I-EL license
applies only to the regular Royalty Free
/ Editorial license. For usage types as the ones from the W-EL license
or P-EL license
you will have to acquire that specific license once again in order to double the allowed number of copies.