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In this tutorial, the presenter demonstrates how to validate a text field using DocHub. To do this, open your PDF file in Adobe Acrobat Pro DC, go to the Tools menu, scroll down to find the "Required from" option, and select the text box tool. Make sure to add instructions and constraints for the field, like the required format and value range. For example, you can set the field to only accept values between 50 to 200 dollars, with specific error messages for invalid entries. By following these steps, you can validate user input in text fields effectively. Don't forget to subscribe, like, share, and comment if you found the tutorial helpful.
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