Flatten a PDF for free 14 uses

Turn fillable form fields into permanent, uneditable page content.

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Runs entirely in your browser — your file is never uploaded
Locks fillable fields into permanent page content
Free, no account required

How it works

1
Upload the PDF you want to edit.
2
Adjust the available options — rotation, text, placement, and so on.
3
Apply your changes.
4
Download the edited PDF.

Why use this tool

Every PDF task, one place

Merge, split, compress, convert, sign, and more — no need to juggle separate apps for each job.

Private by default

Most tools process your file entirely in the browser — it's never uploaded. When a conversion needs the server, the file is deleted within the hour.

Works on any device

Runs in the browser on Windows, Mac, Linux, iOS, and Android — nothing to install, nothing to trust but the tab.

Fast by design

No queues and no desktop app to wait on — most jobs finish in a few seconds, right where you are.

Convert to and from any format

Move between PDF, Word, Excel, PowerPoint, images, and HTML — output stays true to your original formatting.

Free, always

Every tool here is free to use, with no watermarks, page limits, or forced trial period.

Frequently asked questions

It merges interactive elements like form fields, dropdowns, and annotations directly into the base visual layer of the page.

No, flattening is a destructive, one-way process. Always keep a backup of the original interactive file.

It prevents the recipient from easily altering your filled answers and ensures the document displays correctly on all devices.

It visually locks the appearance of the signature but invalidates any cryptographic certificate attached to it.

Often yes, as it simplifies the complex internal structure of interactive widgets into flat, static vectors.

From the blog

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5 PDF Mistakes That Silently Kill Your Documents (and How to Fix Them)

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