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TIFF to PDF Conversion - Performance Issue

Large TIFF files (like the attached one) takes from 30 seconds to 2 minutes to get converted to PDF.

Both Memory and CPU spike full and current performance is not acceptable by the business.

System.Drawing.Image imageFile = System.Drawing.Image.FromFile(sourceFilePath);

float imageFileHeight = (float)imageFile.Height;

float imageFileWidth = (float)imageFile.Width;

imageFile.Dispose();

imageFile = null;

Pdf imagePdf = new Pdf();

#region Set PaperSize & Margin

float paperWidth = Aspose.Pdf.PageSize.A4Width;

float paperHeight = Aspose.Pdf.PageSize.A4Height;

imagePdf.PageSetup.PageHeight = paperHeight;

imagePdf.PageSetup.PageWidth = paperWidth;

#endregion

#region PDF Privileges

imagePdf.Security = new Security();

imagePdf.Security.IsAnnotationsModifyingAllowed = false;

imagePdf.Security.IsContentsModifyingAllowed = false;

imagePdf.Security.IsCopyingAllowed = false;

imagePdf.Security.IsPrintingAllowed = true;

imagePdf.Security.IsFormFillingAllowed = false;

#endregion

#region PDF Margin

Aspose.Pdf.Section addSection = imagePdf.Sections.Add();

Aspose.Pdf.Image newImage = new Aspose.Pdf.Image(addSection);

addSection.Paragraphs.Add(newImage);

addSection.PageInfo.Margin.Left = 0;

addSection.PageInfo.Margin.Right = 0;

addSection.PageInfo.Margin.Top = 0;

addSection.PageInfo.Margin.Bottom = 0;

newImage.ImageInfo.File = sourceFilePath;

#endregion

#region Image Scaling

float imageScale = 1F;

float heightScale = 1F;

float widthScale = 1F;

float fixedWidth = addSection.PageInfo.PageWidth - addSection.PageInfo.Margin.Left - addSection.PageInfo.Margin.Right;

float fixedHeight = addSection.PageInfo.PageHeight - addSection.PageInfo.Margin.Top - addSection.PageInfo.Margin.Bottom;

if (imageFileHeight > fixedHeight)

heightScale = fixedHeight / imageFileHeight;

if (imageFileWidth > fixedWidth)

widthScale = fixedWidth / imageFileWidth;

if ((heightScale != 1F) || (widthScale != 1F))

{

if ((heightScale > 1F) && (widthScale > 1F))

imageScale = 1F;

else

imageScale = heightScale < widthScale ? heightScale : widthScale;

}

newImage.ImageInfo.FixHeight = (imageFileHeight * imageScale);

newImage.ImageInfo.FixWidth = (imageFileWidth * imageScale);

#endregion

#region File Type Check

newImage.ImageInfo.ImageFileType = ImageFileType.Tiff;

newImage.ImageInfo.TiffFrame = -1;

newImage.ImageInfo.IsAllFramesInNewPage = true;

//newImage.ImageInfo.IsBlackWhite = true;

newImage.ImageInfo.CcittSubFormat = CcittSubFormat.Group4;

#endregion

imagePdf.Save(destinationFilePath);

We have tried another product called ABCPdf (using their eval version) and it converted the tiff file in less than 5 seconds.

Hi,

Thank you for considering Aspose.

You need to set IsBlackWhite="true". In my test it takes about 36 seconds. It is a known issue that it takes much time to compress the data when processing such image. We have planed to optimize it but I am afraid we can't finish it in short time. If you can't accept it, please select other product to save your time. Sorry for the inconvenience.