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Is there a file size limit to convert a PDF to grayscale?

Updated July 2026

On the free plan you can convert a PDF to grayscale with files up to 10 MB and 25 pages. Pro raises this to 200–500 MB and up to 1000 pages, and Lifetime to 1 GB with unlimited pages. Converting a PDF to grayscale removes colour from every page, which cuts file size and prepares a document for black-and-white printing.

Answer

On the free plan you can convert a PDF to grayscale with files up to 10 MB and 25 pages. Pro raises this to 200–500 MB and up to 1000 pages, and Lifetime to 1 GB with unlimited pages. Converting a PDF to grayscale removes colour from every page, which cuts file size and prepares a document for black-and-white printing.

More about grayscale pdf

Grayscale conversion removes colour from every page.

It prepares documents for black-and-white printing.

It can reduce size on colour-heavy scans.

How to convert a PDF to grayscale

  1. 1

    Open the tool

    Sign in and open the grayscale tool.

  2. 2

    Add your PDF

    Upload the colour document.

  3. 3

    Convert

    Arthize converts all pages to grayscale.

  4. 4

    Download

    Get a grayscale PDF.

Common questions

How do I convert a PDF to grayscale?
Converting a PDF to grayscale removes colour from every page, which cuts file size and prepares a document for black-and-white printing. On Arthize it's free with no watermark and processed privately.
Will grayscale reduce my PDF's file size?
Converting a PDF to grayscale removes colour from every page, which cuts file size and prepares a document for black-and-white printing. On Arthize it's free with no watermark and processed privately.
Is grayscale conversion free?
Converting a PDF to grayscale removes colour from every page, which cuts file size and prepares a document for black-and-white printing. On Arthize it's free with no watermark and processed privately.

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