Flatten PDF
Flatten form fields, annotations, and overlays into permanent non-editable page content.
Drop your PDF file here
or browse files from your computer or phone
How to use Flatten PDF
Upload your PDF containing interactive form fields or annotations.
Review the security overview explaining the permanent merge.
Click 'Flatten PDF' to bake all form elements into static page content.
Download your locked, tamper-resistant document.
Frequently Asked Questions
What does flattening a PDF actually do?
Flattening converts interactive form fields (such as text inputs, checkboxes, and signatures) into permanent page vector graphics.
Can someone edit the form fields after flattening?
No. Interactive form controls are permanently locked and cannot be selected or modified as form inputs.
Does flattening reduce document visual quality?
No. Text and vector markings are rendered with exact native resolution.
Why should I flatten a PDF before submitting legal forms?
Flattening prevents recipients or automated PDF readers from inadvertently misreading or changing filled-in data.
Is my form data uploaded to any server?
No. All form parsing and flattening execute purely inside your browser memory.
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Every tool runs 100% locally in your browser memory with zero server uploads.