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Flatten PDF for e-commerce sellers

Updated July 2026

Arthize lets e-commerce and retail sellers 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 e-commerce sellers flatten a PDF

A seller merges a month of invoices into one file for the accountant, converts a supplier's PDF price list to Excel, and compresses the product catalogue for a marketplace upload.

Built for invoices. Whether it's invoices, packing slips, catalogues, Arthize's flatten pdf keeps the work inside your private workspace. Order and customer data is confidential; private processing avoids leaking it to a free tool.

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. 1

    Open the flatten tool

    Sign in and open the Flatten tool.

  2. 2

    Add your PDF

    Upload a form or annotated document.

  3. 3

    Flatten

    Arthize bakes fields and annotations into the page content.

  4. 4

    Download

    Get a flattened, tamper-resistant PDF.

Common questions

How do e-commerce sellers 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 e-commerce and retail sellers can use it for invoices without a confidentiality risk.
Is it private to flatten a PDF sensitive invoices?
Yes. Order and customer data is confidential; private processing avoids leaking it to a free tool. 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.

Related

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