# Flatten PDF for contractors

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

Arthize lets construction and trades 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 contractors flatten a PDF

A contractor merges a bid, permit and change order into one project file, signs a document from their phone on site, and compresses a photo-heavy progress report to email the client.

**Built for bids.** Whether it's bids, permits, change orders, Arthize's flatten pdf keeps the work inside your private workspace. Bids and client contracts are commercially sensitive; a private workspace keeps them secure.

## 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 contractors 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 construction and trades teams can use it for bids without a confidentiality risk.

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

Yes. Bids and client contracts are commercially sensitive; a private workspace keeps them secure. 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.