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FILESTATION WORKSPACE

Flatten PDF

Select multiple PDFs, review each document, and export together.

Files stay on your device
Apply changes & continue — no upload needed
How this tool worksMake filled form values part of the page.
  1. Fill the form first, if necessary.
  2. Choose the completed PDF.
  3. Flatten and inspect all saved values.

What you keepVisible appearances of supported AcroForm fields.

Before you exportThis flattens form fields, not every kind of annotation. Keep an editable original.

Drop your files here

Up to 30 files · 50 MB each · 100 MB total

Nothing uploaded Choosing a file starts local processing in your browser. If you switch to a server conversion or save to your account, FileStation asks before upload.

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Flatten PDF: how it works

Make supported AcroForm field values part of a PDF page’s appearance so those fields are no longer interactive.

  1. 1

    Choose a completed PDF form.

  2. 2

    Run Flatten PDF.

  3. 3

    Open the output and verify the field values before sharing.

Before you start: Flattens AcroForm fields; does not flatten every annotation type.

Flatten PDF FAQs

Does flattening make a PDF impossible to edit?

No. This tool flattens AcroForm fields, not every annotation or type of content. Other PDF software may still modify the document.

Are my documents uploaded?

Local PDF tools process documents in your browser. Choosing a file alone does not upload it. Server conversion sends the chosen file only after you confirm. Account storage is optional: Save to account uploads that result or draft to your private library.

Are my PDFs encrypted?

The website uses HTTPS to encrypt the connection. Local processing does not automatically password-encrypt your input or downloaded PDF. No website can guarantee 100% security; use a trusted device and keep your original files.

How do I save a PDF on an iPhone?

After creating the result, use Save / Share and choose Save to Files. If a download opens a preview, use the browser’s Share control to save a copy.

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