Control Image Quality | Document Solutions for Excel, .NET Edition

Control Image Quality

In This Topic

DsExcel enables users to control the quality of images while exporting them to PDF documents. The ImageQuality property of PdfSaveOptions class can be used for the same. The property takes percentage values and its default value is 75. However, it can vary between 0 to 100, depicting the below behavior:

Value	Image Quality	Image Compression
0	Lowest	Maximum
100	Highest	Nil

Using Code

Refer to the following example code to export an image to PDF with highest image quality.

C#	Copy Code
// Initialize workbook Workbook workbook = new Workbook(); // Fetch default worksheet IWorksheet worksheet = workbook.Worksheets[0]; //Add a picture worksheet.Shapes.AddPictureInPixel("Logo.png", 0, 0, 639, 578); //Create PdfSaveOptions PdfSaveOptions pdfSaveOptions = new PdfSaveOptions(); //Set image quality as 100 % (highest quality) pdfSaveOptions.ImageQuality = 100; //Save to pdf with PdfSaveOptions workbook.Save("LogoInPDF.pdf", pdfSaveOptions);

Copy Code

// Initialize workbook
Workbook workbook = new Workbook();
// Fetch default worksheet
IWorksheet worksheet = workbook.Worksheets[0];

//Add a picture
worksheet.Shapes.AddPictureInPixel("Logo.png", 0, 0, 639, 578);

//Create PdfSaveOptions
PdfSaveOptions pdfSaveOptions = new PdfSaveOptions();

//Set image quality as 100 % (highest quality)
pdfSaveOptions.ImageQuality = 100;

//Save to pdf with PdfSaveOptions
workbook.Save("LogoInPDF.pdf", pdfSaveOptions);