What is JotForm?
JotForm is a free online form builder which helps you create online forms without writing a single line of code. No sign-up required.
At JotForm, we want to make sure that you’re getting the online form builder help that you need. Our friendly customer support team is available 24/7.
We believe that if one user has a question, there could be more users who may have the same question. This is why many of our support forum threads are public and available to be searched and viewed. If you’d like help immediately, feel free to search for a similar question, or submit your question or concern.
The file upload button for single file uploads is browser based. Whatever the browser language is set to, will be the language for the button text.
If you want to set the text, you would need to enable multiple file uploads:
The total allowed can be set to "1". Once multiple is enabled, the button can be styled and the text changed from the fields options.