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How do I flatten a PDF?
Updated July 2026
Flattening a PDF merges form fields, annotations and layers into the page, so nobody can change filled-in values and the file renders everywhere. In Arthize you open the flatten tool, then add your pdf, then flatten, then download, and download the result — free, with no watermark.
Answer
Flattening a PDF merges form fields, annotations and layers into the page, so nobody can change filled-in values and the file renders everywhere. In Arthize you open the flatten tool, then add your pdf, then flatten, then download, and download the result — free, with no watermark.
More about flatten 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.
Common questions
- 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.
- Is flattening a PDF 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 processed privately.
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