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Slow PDF to TIFF conversion

We have a PDF with 11 pages, the conversion is taking 3 minutes. Is there anything that can be improve in this code:

Aspose.Pdf.License license = new Aspose.Pdf.License();
//create return object
List<byte[]> images = new List<byte[]>();
//Load Byte Array to Stream
using (MemoryStream inputStream = new MemoryStream(InputFile))
//Load PDF
Document pdfDocument = new Document(inputStream);
//Set TIFF Options
TiffSettings tiffSettings = new TiffSettings();
tiffSettings.Compression = CompressionType.CCITT4;
tiffSettings.Depth = ColorDepth.Format1bpp;
tiffSettings.SkipBlankPages = false;
//create TIFF device
Aspose.Pdf.Devices.Resolution resolution = new Aspose.Pdf.Devices.Resolution(DefaultPdi);
TiffDevice tiffDevice = new TiffDevice(resolution, tiffSettings);
//convert each page
for (int i = 0; i < pdfDocument.Pages.Count; i++)
using (MemoryStream outputStream = new MemoryStream())
tiffDevice.Process(pdfDocument, i + 1, i + 1, outputStream);
//Add Images
return images;

Hi Luis,

Thanks for your interest in our products.

You may check the following documentation link for details and code snippets as per your requirement.

Performance Improvement during PDF to TIFF Conversion

Please do let us know if you need any further assistance and kindly share source PDF file with us. This will help us to figure out the issue and reply back to you soon.

Thanks & Regards,