Flatten PDF
or drop files here · Max 60MB per file
Loading preview…
Make your filled-in form fields and annotations permanent, or convert the entire document into image pages, right in your browser. Useful for sending filled forms with no risk of later edits.
- Free, no registration required
- Works directly in your browser — nothing to install
- Files automatically deleted after 1 hour
- Secure connection (HTTPS) from start to finish
Flatten PDF: make forms and annotations permanent
A PDF with a filled-in form can still be edited by whoever receives it. Flattening turns the filled fields and annotations into a fixed part of the document, preventing later changes and making sure the file looks the same in any reader.
There are two modes. The default one flattens only the form fields, keeping the PDF vector-based. Full flattening turns every page into an image, removing any possibility of editing.
Specifications
- Accepted files
- PDF with forms or annotations
- Result
- Flattened PDF (not editable)
- Multiple files
- Yes, in batches (result in a ZIP when there is more than one)
- Maximum size
- 60 MB per file on the free plan; 100 MB on Premium
- Processing
- On ConverteJá servers, over an encrypted connection (HTTPS)
- Privacy
- Uploaded and generated files are deleted automatically after 1 hour
- Free plan
- 10 conversions per day, no sign-up and no watermark
- Compatibility
- Windows, macOS, Linux, Android and iOS, in any modern browser
How to use it, step by step
Upload the PDF
Upload the PDF with a filled-in form or annotations.
Choose the mode
Decide whether you want default or full flattening by checking the corresponding option.
Process
Process the file.
Download the PDF
Download the flattened PDF.
When to use this tool
- Sending filled-in forms with no risk of later changes.
- Making sure annotations and highlights show up in any viewer.
- Preparing final documents for archiving or filing.
- Fixing cases where form fields disappear or change appearance in other programs.
Tips for a good result
- Full flattening makes the file larger and the text is no longer selectable. Use it only when you need a complete lock.
- If the text must stay searchable, stick with the default mode, which flattens only the fields.
- Flatten only after reviewing everything, because afterwards the fields can no longer be edited.
Frequently asked questions
What is the difference between flattening and password protection?
Flattening makes the content fixed, but anyone can still open the file. A password controls who can open it. The two can be combined.
Is the text still searchable?
In the default mode, yes. With full flattening, each page becomes an image and the text is no longer selectable.
Can I undo the flattening?
No. Keep a copy of the original PDF with editable fields in case you need to change them in the future.
What are the limits of the free plan?
The free plan allows 10 conversions per day, with files up to 60 MB and no sign-up required. The Premium plan removes the daily limit and the ads.