Flatten PDF
Remove all interactive form fields, annotations, and layers by rasterizing each page. Your files never leave your device.
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Maximum file size: 100MB
Frequently Asked Questions
- What does flattening a PDF mean?
- Flattening a PDF renders every page to a static image and reassembles them into a new PDF. The result has no interactive elements — form fields, checkboxes, annotations, and layers are all baked into the image. This makes the document fully portable and prevents further editing.
- Will text still be searchable after flattening?
- No. Because each page is rasterized (converted to a JPEG image), text is no longer selectable or searchable in the output. If you need searchable text, use a PDF OCR tool instead. Flattening is best for distribution or archiving when editability is not needed.
- Which DPI setting should I choose?
- 150 DPI (Balanced) is the best choice for most uses — sharp enough for screen and email, with a reasonable file size. Choose 96 DPI for the smallest file size when print quality is not needed. Choose 300 DPI for the highest quality output intended for printing.
- Is Flatten PDF free to use?
- Yes, 100% free. No account required, no file size limits beyond 100 MB, and no watermarks on the output.
- Are my files safe? Do you upload them?
- All processing runs entirely in your browser using JavaScript. Your PDF is never sent to any server — it stays on your device the whole time.
- Does it work on mobile?
- Yes, the tool works on all modern browsers including mobile Safari and Chrome on iOS and Android. Large PDFs at high DPI may take longer on mobile devices.