Will text stay selectable?

No — flattening rasterizes pages, so text becomes part of the image. Use it when you want an uneditable final copy.

No, flattening runs locally in your browser.

Does it reduce file size?

It may, depending on the chosen quality; lower quality yields smaller files.

All Tools›PDF Tools›

Flatten PDF

Free · No Server

Rasterize every page so form fields and annotations become a permanent, uneditable image — 100% in your browser.

Loading tool…

What is Flatten Pdf?

Flatten PDF renders every page to an image so that form fields, comments, annotations, and layers are baked into the page and can no longer be edited or changed. It runs entirely in your browser with no upload.

How to Use

1
Upload your PDF
Drag in a PDF with forms or annotations.
2
Pick quality
Choose render quality and resolution.
3
Download
Get a flattened, uneditable PDF.

Common Use Cases

Locking a filled form so it can't be changed
Making annotations permanent before sharing
Ensuring consistent rendering across readers
Preparing a final, non-editable PDF

Key Features

Flattens forms, annotations, layers
Adjustable quality/resolution
100% client-side

🔒

100% Private — No Server Required

All processing happens directly in your browser. No data is uploaded, stored, or transmitted to any server.

Frequently Asked Questions

Related Free Tools

All-in-One PDF Editor Compress PDF Redact PDF Sign PDF Watermark PDF

Explore more PDF Tools tools →

Last reviewed on June 19, 2026 by the AiTechWorlds Tools Team. All processing runs locally in your browser.

Learn more on this topic

ArticleBuild a LangChain Document Q&A System (PDF, HTML, DOCX)

AiTechWorlds