# Flatten PDF for designers

_Updated July 2026 · Arthize · https://arthize.com/for/designers/flatten-pdf_

Arthize lets designers and creative teams flatten a PDF in a private workspace — free, with no watermark. Flattening a PDF merges form fields, annotations and layers into the page, so nobody can change filled-in values and the file renders everywhere.

## Why designers flatten a PDF

A designer sends a proof as a fixed PDF, exports selected pages to high-resolution PNG for a client preview, and compresses the print layout for email approval — keeping the originals private.

**Built for proofs.** Whether it's proofs, portfolios, print layouts, Arthize's flatten pdf keeps the work inside your private workspace. Client work and unreleased designs are confidential; private processing keeps proofs off public tools.

## What matters when you flatten a PDF

Flattening bakes form fields and annotations into the page so they can't be changed.

It fixes forms that display differently in different viewers.

A flattened PDF is the safe way to share a completed form.

## How to flatten a PDF

1. **Open the flatten tool** — Sign in and open the Flatten tool.
2. **Add your PDF** — Upload a form or annotated document.
3. **Flatten** — Arthize bakes fields and annotations into the page content.
4. **Download** — Get a flattened, tamper-resistant PDF.

## FAQ

### How do designers flatten a PDF for free?

Flattening a PDF merges form fields, annotations and layers into the page, so nobody can change filled-in values and the file renders everywhere. On Arthize it's free with no watermark, and the file is deleted after the job — which is why designers and creative teams can use it for proofs without a confidentiality risk.

### Is it private to flatten a PDF sensitive proofs?

Yes. Client work and unreleased designs are confidential; private processing keeps proofs off public tools. Files are processed inside your private Arthize workspace and deleted after the job.

### How do I flatten a PDF form?

Flattening a PDF merges form fields, annotations and layers into the page, so nobody can change filled-in values and the file renders everywhere. On Arthize it's free with no watermark and processed privately.

### Why do my filled form fields disappear in some viewers?

Flattening a PDF merges form fields, annotations and layers into the page, so nobody can change filled-in values and the file renders everywhere. On Arthize it's free with no watermark and processed privately.