Tool capabilities
- Input
- Output
How to use Flatten PDF
Flatten existing AcroForm field appearances into page content. Fields must already have usable appearances; signatures are not preserved as valid signatures. This flatten pdf works directly in your browser and is free to use without an account.
- Choose local files in the formats shown. For multiple inputs, arrange them using the arrow buttons.
- Set the page range, frame timing, compression or sheet options shown for this tool, then run it.
- Review the output and download individual files or all results as a ZIP. Download before leaving the page.
Flatten PDF · Example
Input
Select a local PDF and page settings.
Output
Download the processed PDF.
Flatten existing AcroForm field appearances into page content. Fields must already have usable appearances; signatures are not preserved as valid signatures.
Usage notes
Inputs and results are processed on this device. Tool content is not sent to a processing server.
Flattening uses existing form appearances and removes interactive fields. Digital signatures will no longer validate.
Limits: 20 MiB per input, 50 MiB combined input, 80 MiB combined output and a cancellable 30-second job. PDF merge and image-to-PDF accept up to 10 inputs. Archives allow at most 200 entries, 20 MiB per expanded entry and 80 MiB total. GIF frames are limited to 2,048 pixels per side and 20 million combined pixels. Document XML is limited to 5 MiB; text output to 2 MiB; ODS to 5,000 rows, 50 columns and 100,000 cells.