# Gravity Forms Verification of uploaded File \[RESOLVED\]

**URL:** <https://community.gravityforms.com/t/gravity-forms-verification-of-uploaded-file-resolved/11653>\
**Category:** Get Help\
**Tags:** file-uploads, gform\_field\_validation, validation, gform\_validation\
**Created:** [January 20, 2022, 9:54am UTC](https://community.gravityforms.com/t/gravity-forms-verification-of-uploaded-file-resolved/11653 "2022-01-20T09:54:58Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![user61cde1a1ae311871](https://sea2.discourse-cdn.com/flex020/user_avatar/community.gravityforms.com/user61cde1a1ae311871/32/4321_2.png) [@user61cde1a1ae311871](https://community.gravityforms.com/u/user61cde1a1ae311871)\
**Post date:** [January 20, 2022, 9:54am UTC](https://community.gravityforms.com/t/gravity-forms-verification-of-uploaded-file-resolved/11653/1 "2022-01-20T09:54:58Z")

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Hi there, I built a form with two file upload functions. The users of my page will use it to upload a specific document, which has got a front side and a back side. Question: Is there a “ready to use” way with GF to verificate if the user has uploaded different files. What I need is a warning, if someone has uploaded identical files in both file uploads.

Thanks for your help!

Thomas

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**Author:** ![sacom](https://sea2.discourse-cdn.com/flex020/user_avatar/community.gravityforms.com/sacom/32/53_2.png) [@sacom](https://community.gravityforms.com/u/sacom)\
**Post date:** [January 20, 2022, 5:00pm UTC](https://community.gravityforms.com/t/gravity-forms-verification-of-uploaded-file-resolved/11653/2 "2022-01-20T17:00:15Z")

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Thomas, there’s no built-in feature to do this. The following third-party add-on adds many features to Gravity Forms uploads, but I’m not sure if it could do what you’re looking for, I would recommend to ask the author about it: [https://imagehopper.tech/](https://imagehopper.tech/)

There are also some validation filters that you could use to create your own custom code to perform a validation of the files being uploaded:

> **[gform\_validation](https://docs.gravityforms.com/gform_validation/)**
>
> The "gform\_validation" filter allows custom validation logic to be used by Gravity Forms when a form is submitted. This allows more granular validation of fields than the default validation used.

> **[gform\_field\_validation](https://docs.gravityforms.com/gform_field_validation/)**
>
> Use this filter to create custom validation logic for a field.

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**Author:** ![user61cde1a1ae311871](https://sea2.discourse-cdn.com/flex020/user_avatar/community.gravityforms.com/user61cde1a1ae311871/32/4321_2.png) [@user61cde1a1ae311871](https://community.gravityforms.com/u/user61cde1a1ae311871)\
**Post date:** [January 27, 2022, 12:13pm UTC](https://community.gravityforms.com/t/gravity-forms-verification-of-uploaded-file-resolved/11653/3 "2022-01-27T12:13:19Z")

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Thank You! Your reply helped me a lot!

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**Author:** ![chrishajer](https://sea2.discourse-cdn.com/flex020/user_avatar/community.gravityforms.com/chrishajer/32/88_2.png) [@chrishajer](https://community.gravityforms.com/u/chrishajer)\
**Post date:** [January 27, 2022, 6:38pm UTC](https://community.gravityforms.com/t/gravity-forms-verification-of-uploaded-file-resolved/11653/4 "2022-01-27T18:38:33Z")

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