QBMFX PDF
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QPDF · BOOK CENTER

Grayscale PDF

Convert the visible appearance of PDF pages into grayscale images inside a new PDF. This suits simple ink-saving copies of scanned notes, colored forms and draft handouts. Choose a resolution that preserves readable text and inspect the actual output, especially diagrams where color carried meaning. Keep the original PDF for any editable, searchable or interactive version of the document.

100% freeNo loginFiles stay on your device

Use the arrows to put files in the order you want. Selecting more files adds them to this list.

    Choose your files and review the settings.

    Keep originals and inspect the result before printing. File changes clear previous downloads. Heavy image and OCR work can take longer on a phone.

    QUICK GUIDE

    Using Grayscale PDF

    1. Choose a PDF.
    2. Select a rendering resolution and image quality.
    3. Create the grayscale copy and check fine text and diagrams.
    Read the detailed guide →

    Behind the result

    The tool renders each visible page, converts its pixels to gray and embeds that image into a new PDF page with the corresponding dimensions.

    Free tools for everyday work

    Book centers, photocopy shops, freelancers and developers can use this workspace without a paid plan or account. Files are processed locally. Prepare website resources from offline setup before disconnecting; Urdu/OCR also needs the separate pack above.

    The Windows app currently includes the original four tools. These new Book Center tools are available on the website; app and extension updates will be separate releases.

    Answers and practical details

    Text selection after conversion

    The new PDF contains page images, so text selection and search are lost unless a separate OCR process adds a text layer later.

    Price and account requirements

    This website tool is 100% free. No login, subscription or paid conversion tier is required. Your device supplies the processing memory.

    Files and privacy

    Input documents and generated results are handled locally. They are not sent to a QBMFX conversion API or stored in a customer database. Website hosting and advertising can still make separate network requests.

    Offline preparation

    Prepare the website resources from Help while connected, then test the required tool offline. OCR and Urdu text tools also need their optional language or font resources prepared first. Browser storage can be removed by the browser or by you.

    Windows app and Edge extension

    The existing installed app and extension contain the original four PDF tools. These new Book Center tools belong to the website release; they will need a separate installed-package update.

    Continue your workflow

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