Flatten PDF
Flatten a PDF so text, form fields and annotations become part of the page and can no longer be edited separately.
Flatten PDF online
Flatten a PDF so text, form fields, annotations, and other content become part of the page and can no longer be edited separately. PDFTurner processes your file directly in your browser, so it is never uploaded to our servers.
Useful for signed documents, contracts, engineering drawings, forms, quotations, and anything with annotations you want to preserve.
What does flattening a PDF do?
Flattening a PDF combines its editable elements into the page itself. Form fields, annotations, and other interactive elements can no longer be changed separately. The result is useful when you want the document to look the same when opened or printed elsewhere.
When should you flatten a PDF?
- Before sharing a completed form
- To prevent form fields from being edited
- To preserve annotations when sending a document
- Before printing or submitting a finalized document
How to flatten a PDF
- 1.Select your PDF.
- 2.Flatten the file.
- 3.Download the result.
Why use PDFTurner?
- Free to use
- No account required
- Files stay on your device
- Preserves how the document looks
- Works with forms and annotations
- Works directly in your browser
Frequently asked questions
Is PDFTurner free?
Yes. The browser-based flatten tool is free.
Are my PDF files uploaded?
No. Flattening runs locally in your browser — your file is never sent to a server.
Does flattening make my PDF secure or protected?
No. Flattening merges form fields, annotations and text into the page so they can no longer be edited separately in most PDF viewers. It is not encryption or password protection, and specialized software could still modify or recreate the content. If you need access control, use a password or permissions tool instead.