If i purchase $30 plan, can i upgrade to $50 plan later if needed?

If I purchase a $30 plan, can I upgrade to a $50 plan later if needed? if possible what are the conditions for that?

Hi,

You can upgrade License Key by paying the difference at any time. The price will be calculated as the price till License Key expire date (which you are trying to update) minus previous payment.

"Upgrade" link can be found at your account: https://e2pdf.com/dashboard/licenses after License Key purchase

or

You can upgrade it directly from here: https://e2pdf.com/checkout/license/upgrade.

We remain at your service.

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Ok, thank you. purchase done. :)