Flatten PDF Forms Before Submission
Convert interactive form fields to static content for permanent submission
Why flatten PDF Forms Before Submission?
Before submitting a filled PDF form, flatten it to convert all interactive fields (text boxes, checkboxes, signatures) into static, non-editable content. This prevents anyone from modifying your submitted data after you've sent it.
How to flatten PDF Forms Before Submission — Step by Step
Check the input requirements, follow the steps below, and open the tool when you are ready.
- 1
Upload your filled PDF form
- 2
Select elements to flatten (forms, annotations, JavaScript)
- 3
Click 'Flatten'
- 4
Download the locked, static PDF
Frequently Asked Questions
What does flattening a PDF form do?
Can a flattened PDF be un-flattened?
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Ready to flatten PDF Forms Before Submission?
Free to run, no card. Anonymous uploads are limited to 25 MB per file and 25 MB combined per operation. Confirm email to download; signed-in uploads support up to 100 MB per file and 100 MB combined per operation, subject to tool and plan limits.
The free plan includes 3 contracts/month. Review the current plan terms before sending.