Flatten PDF form fields
Turn filled form fields into fixed page content.
Drop your PDF files here
Or choose them from your device to get started.
50 MB total · No uploads
Makes PDF form fields non-editable. This does not rasterize pages or remove all annotations.
Download the practice form. Use the practice form. After flattening, values should remain visible and fields should no longer accept input.
How to use Flatten PDF
Choose a completed interactive form
Keep an editable original. This fixes supported form values into page content; it does not rasterize every page.
Flatten forms
Keep the source, run the task and inspect the result before accepting it.
Reopen and inspect field values
Compare the saved copy with the practice result described above before using your own document.
Flatten filled PDF form fields into fixed content
Make supported interactive form fields non-editable as fields while retaining a separate working original. This operation differs from rasterizing every page into an image.
A practical example
For a form with a name field and checkbox, confirm the values first. Flatten a copy, then check that both values remain visible and the former fields no longer accept input.
What to check in the result
Fixed page content can still be changed with a general PDF editor. Flattening is not a permission lock or certified signature, and it does not remove every annotation or layer.
Supported files and limits
Use valid, unencrypted PDF files, within 50 MB total input. Complex files may exceed device memory.
Local document processing · File privacy and website requests.
Questions & answers
Does flattening remove every annotation?
No. This tool converts interactive form fields into fixed page content. It does not rasterize pages or remove all annotations.
Should I fill the form before flattening it?
Yes. Check the values first and keep an editable original. After flattening, former fields are no longer editable as form fields.
Does flattening prevent all PDF editing?
No. A general PDF editor can still change fixed page content. Flattening is not an access restriction, encryption or certified signature.
Can I edit the fields after flattening?
Flattened fields become fixed page content. Keep the original editable form if you may need to change answers later.