Flatten PDF
How to use
Locks in form field values and annotations by merging them permanently into the page content, so the PDF can no longer be edited as a form. Upload the filled form and click Flatten to get a final, non-editable PDF.
Select a PDF to flatten
Bake form fields and annotations into the page content
- Locking in values on a completed form before sending it out for signatures
- Archiving a finalized application so recipients cannot alter submitted data
- Preparing a distributed agreement that should display consistently across viewers
- Finalizing annotated review comments into permanent page content
Free and private. Everything runs on your own device, with no account and no uploads.
Flatten PDF converts interactive form fields, annotations, and comments into permanent, non-editable page content, which is useful once you have finished filling out a form and want to lock in the values before sending it out. Businesses distributing finalized agreements and HR teams archiving completed applications use this to prevent recipients from accidentally altering submitted data. Flattening happens entirely within your browser, keeping the finished document private during processing.
No, flattening permanently converts fields into static page content, so they can no longer be edited as form fields.
No, the visual appearance stays the same; only the underlying interactivity of the fields is removed.
Flattening prevents accidental changes to submitted values and ensures the document prints and displays consistently across viewers.
Yes, comments and markup annotations are merged into the page content and are no longer separately editable after flattening.
Typically flattening applies to the entire document at once rather than selectively per field.
- 1
Upload your PDF
Select the PDF with form fields or annotations you want to finalize.
- 2
Review the current fields
Confirm all form values and annotations are correct before locking them in.
- 3
Flatten the document
Click Flatten to merge interactive elements into the static page content.
- 4
Download the flattened PDF
Save the finalized, non-editable version of the document.
- ·Flatten only after you are certain all field values and annotations are correct, since the fields cannot be edited again afterward.
- ·Keep an unflattened copy of the original if you might need to make changes later.
- ·Flattening does not change the visual appearance, only whether the content stays interactive.