400 page pdf to png

[jaka1-newbie]

I have code

MagickReadSettings settings = new MagickReadSettings
{
    Density = new Density(300, 300)
};

using (MagickImageCollection images = new MagickImageCollection())
{
    images.Read(pdfFilePath, settings);
    project.SendInfoToLog("Total pages\n" + images.Count, true);

    int halfPage = images.Count / 2;
    project.SendInfoToLog("Half Pages " + halfPage, true);

    // Сохраняем каждую страницу PDF как отдельное изображение
    for (int i = 0; i < images.Count; i++)
    {
        string imageName = i < halfPage ? $"Puzzle #{i + 1}" : $"Solution #{i + 1 - halfPage}";
        string imagePath = Path.Combine(imagesDirectory, imageName + ".png");

        using (MagickImage image = (MagickImage)images[i])
        {
            image.Write(imagePath);
        }
    }
}

But this code generate many temp files and use huge amount of memory. May be i doing something wrong?

[jaka1-newbie]

200 unresianable.pdf

[dlemstra]

You are not doing something wrong but you have other options. Instead of loading all the pages at once you could do something like this:

var fileName = "200.unresianable.pdf";
var pdfInfo = PdfInfo.Create(fileName);

for (var i = 0; i < pdfInfo.PageCount; i++)
{
    var readSettings = new MagickReadSettings
    {
        Density = new Density(300, 300),
        FrameIndex = i,
    };

    using (var image = new MagickImage(fileName, readSettings))
    {
        image.Write(${i + 1}.png");
    }
}

[jaka1-newbie]

Ths! But this also work so slowly( but using of memery reduced.