Flatten PDF
Flatten PDF forms and annotations online. Fields, checkboxes, and comments are baked into the page — the document can no longer be edited and prints identically everywhere.
- 1Files
- 2Run
- 3Result
1. Files
Source file
Accepted formats: .pdf2. Run
Attach a file to continue
How it works
- 1Upload a PDF with filled forms, comments, or markup.
- 2Click 'Flatten' — all fields and annotations are baked into the pages.
- 3Download a document that looks the same in every viewer.
Frequently asked questions
- Why flatten?
- Filled form fields and comments are separate 'floating' objects: they can vanish or shift when printed or opened in another program. Flattening bakes them into the page for good.
- Can fields be edited after flattening?
- No — that is the point. Values are frozen as regular content; a field can no longer be edited or accidentally cleared.
- Is the document rasterized?
- No, text and vector graphics are preserved. Flattening moves annotation content into the page without quality loss.