PyrbitPyrbit › Pyrbit PDF › PDF tools › Flatten PDF
Edit & Optimize
Flatten a PDF so forms and comments can’t be changed.
Flattening merges what’s been filled in — and optionally comments and drawings — into the page itself. The result looks the same in every reader and can’t be edited by accident.
Runs in your browser·Files are never uploaded·One free document every 24 hours with a Google account
How it works
Flatten PDF in three steps.
Choose the PDF
Select a filled-in form or a document with comments.
Choose what to flatten
Form fields are always flattened. Leave “Also flatten comments and drawings” on to fix annotations in place too.
Save the flattened PDF
You see how many items were flattened. If there was nothing interactive, the file is left unchanged.
What you can do
What Flatten PDF does.
- Turns form fields into fixed page content
- Optionally flattens comments, highlights and drawings
- Keeps text selectable — pages aren’t turned into pictures
- Tells you exactly how many items were flattened
Private by design
Your PDF never leaves your device.
Flatten PDF runs inside your browser tab. The file you choose is read from your device, processed there, and the result is saved back to your device — it is never uploaded to a Pyrbit server, so there is no copy to keep or delete.
Processed in your browser
The Pyrbit PDF engine runs on your computer or phone, not in the cloud.
No upload
Your document isn’t sent anywhere — not to us, and not to a third-party converter.
Sign-in is for your plan only
Your Google account keeps track of your free daily document and Pyrbit Pro. It never gives us your files.
Prefer offline?
The Pyrbit PDF apps do the same work on your phone, tablet or Mac — even without a connection.
Web or app
Use Flatten PDF in your browser, or in the free app.
Web browser
Works on any computer, tablet or phone with a modern browser. Sign in with a Google account to use the web app: one free document every 24 hours, with any tool. Pyrbit Pro (₹79/month or ₹599/year) gives unlimited use with no ads.
iPhone, iPad & Mac
Every tool, including Flatten PDF, with no file-size limit and offline use. Free on iPhone and iPad (with ads); the Mac app is paid.
Android & Chromebook
Every tool, including Flatten PDF, with no file-size limit and offline use. Free, supported by ads.
FAQ
Flatten PDF questions.
Why flatten a PDF?
So filled-in answers and annotations can’t be changed, and so the document prints and displays the same everywhere — common before submitting a form or archiving a contract.
Can I undo flattening?
Not in the flattened file. Keep your original if you might need to change the form later.
Is the text still searchable after flattening?
Yes. The online tool flattens fields and comments into the page content without turning pages into images.
Is Flatten PDF free?
On the web, sign in with a Google account and you can use Flatten PDF — or any other tool — on one free document every 24 hours. Pyrbit Pro (₹79/month or ₹599/year) gives unlimited use with no ads. The Pyrbit PDF apps for iPhone, iPad and Android are free, supported by ads.
Ready when you are.
Open Flatten PDF in your browser — your file stays on your device.