How to require user to login to check their identity before answering the form?

Jotform ile hazırladığımız formlara ulaşmak için kullanıcıadı/şifre girilmesi mümkün mü ??

Yani herkes dolduramasın formları sadee kullanıcı adı ve şifresi gibi bir login sayfası geçildikten sonra girmeleri sağlanabiliyormu ??

Hello Cem,

Thanks for reaching out to Jotform Support. Unfortunately, our Spanish Support agents are busy helping other Jotform users at the moment. I'll try to assist you in English using Google Translate, but you can reply in whichever language you feel comfortable using. Or, if you'd prefer to receive support in Spanish, let us know and we can have them do that. But, keep in mind that you'd have to wait until they're available again.

About your concern. You can restrict who can fill out your form. We’ll just need to set your form’s Access Settings to Private. This means that only people who you invite can access your form after they sign into their Jotform Account. It’s easy to set up. Let me show you how: 

1. In Form Builder, click on Publish in the orange navigation bar at the top of the page.
2. Click on Settings and click on Private Form and select your permission.
3. Next, enter the email addresses for the people you want the form to be sent to.
4. Click on Submit & View to select the permission type, and then click on Send Invitation. That’s it. You’re done.

After you invite people to fill in your form, they’ll receive an email that has a View Form button:

When they click on that button, they’ll be asked to log in to their Jotform Account or they’ll need to create a Jotform Account to fill in your form:

After they sign in/login to Jotform with the email address they were invited with, they’ll be able to fill in your form.

Give it a try and let us know how it goes.