Flatten PDF
Filled forms become permanent, uneditable content.
Drop your file here
or
Accepted: PDF
Free · No sign-up · Files never leave your device for most tools
This tool runs entirely in your browser — your file is never uploaded.
How it works
1
Upload
2
Adjust
3
Download
Frequently asked
Is Flatten PDF free?
Yes. Flatten PDF is completely free with no sign-up, no watermark and no daily limit. There is no paid tier — every tool on iAdorePDF is free to use as often as you like.
Is Flatten PDF safe and private?
Yes. Flatten PDF runs entirely inside your browser, so your file is never uploaded to any server. Nothing leaves your device, which makes it safe for confidential documents.
Do I need to install any software?
No. Flatten PDF works in any modern browser — Chrome, Safari, Firefox or Edge. There is nothing to download and no account to create.
Does Flatten PDF work on a phone?
Yes. Flatten PDF is built mobile-first and works on iPhone and Android exactly as it does on a computer, straight from the browser.
How do I use Flatten PDF?
Open the page, drop your file into the upload box (or tap Select file), choose your options, then press the start button. Your result downloads straight to your device.
Is there a file size limit?
There is no server limit because the work happens on your own device. The practical ceiling is your device memory; files up to about 100 MB are comfortable on most phones and much larger on a computer.
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