PDF to Image Converter

[d_stranz]

Feel free to share more details about your project!

Do you realize you are replying to a 14 year old post?

In case anyone wanders into this post, the QPdf module contains the functionality needed to open a PDF document, navigate through it page by page, and render individual pages to a QImage using QPdfDocument. If you want to save the image to a file, QImage::save() will do that. If you want to display the page image on-screen, then QPainter::drawImage() will do that for you.

There is no need for any external (non-Qt) code to accomplish this.

[nehakakar]

Hey hi, you should check the code because scaledsimage isn't being set correctly.

pdfFile = LoadPDF(fixurl.absoluteFilePath(), page, large);
if (pdfFile.isNull()) {
    QMessageBox::warning(0, "Error", "Failed to load PDF.");
} else {
    QImage tImage = pdfFile.toImage();
    if (!tImage.isNull()) {
        tImage.save("output.png", "PNG", 100);
    } else {
        QMessageBox::warning(0, "Error", "Failed to convert QPixmap to QImage.");
    }
}

pdfFile = LoadPDF(fixurl.absoluteFilePath(), page, large);
if (pdfFile.isNull()) {
    QMessageBox::warning(0, "Error", "Failed to load PDF.");
} else {
    QImage tImage = pdfFile.toImage();
    if (!tImage.isNull()) {
        tImage.save("output.png", "PNG", 100);
    } else {
        QMessageBox::warning(0, "Error", "Failed to convert QPixmap to QImage.");
    }
}

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[nehakakar]

Hey hi, you should check the code because scaledsimage isn't being set correctly.

pdfFile = LoadPDF(fixurl.absoluteFilePath(), page, large);
if (pdfFile.isNull()) {
    QMessageBox::warning(0, "Error", "Failed to load PDF.");
} else {
    QImage tImage = pdfFile.toImage();
    if (!tImage.isNull()) {
        tImage.save("output.png", "PNG", 100);
    } else {
        QMessageBox::warning(0, "Error", "Failed to convert QPixmap to QImage.");
    }
}

pdfFile = LoadPDF(fixurl.absoluteFilePath(), page, large);
if (pdfFile.isNull()) {
    QMessageBox::warning(0, "Error", "Failed to load PDF.");
} else {
    QImage tImage = pdfFile.toImage();
    if (!tImage.isNull()) {
        tImage.save("output.png", "PNG", 100);
    } else {
        QMessageBox::warning(0, "Error", "Failed to convert QPixmap to QImage.");
    }
}

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On the other hand you can also use any online image converter such as Image Converter and for compressor Jpeg Compressor, these are really good tool.