Pdf Compression


Pdf Compression

Select.Pdf Library for .NET offers the possibility to reduce the size of the generated pdf document using compression.

Compression Levels

Select.Pdf offers 3 compression levels that can be controlled using CompressionLevel property of the PdfDocument object:

NoCompression: PDF file is generated without any compression.
Normal: PDF compression at normal speed with normal reduction of data size.
Best: PDF best compression, but more time consuming.

Sample Code

This sample code shows how to create a new PDF document using Select.Pdf, how to add a text element to it and use compression to reduce the size of the generated pdf document.

Copy

// create a new pdf document
PdfDocument doc = new PdfDocument();
doc.Margins = new PdfMargins(20, 20, 20, 20);

// set compression level
doc.CompressionLevel = (PdfCompressionLevel)Enum.Parse(
    typeof(PdfCompressionLevel), DdlPdfCompressionLevel.SelectedValue, true);

// create a new pdf font
PdfFont font = doc.AddFont(PdfStandardFont.Helvetica);
font.Size = 16;

// add a new page to the document
PdfPage page = doc.AddPage();

// create a new text element and add it to the page
PdfTextElement text = new PdfTextElement(0, 0, 
    Helper.SomeVeryLongText(), font);
page.Add(text);

// save pdf document
doc.Save(Response, false, "Sample.pdf");

// close pdf document
doc.Close();

' create a new pdf document
Dim doc As New PdfDocument()
doc.Margins = New PdfMargins(20, 20, 20, 20)

' set compression level
doc.CompressionLevel = DirectCast([Enum].Parse(GetType(PdfCompressionLevel), _
    DdlPdfCompressionLevel.SelectedValue, True), PdfCompressionLevel)

' create a new pdf font
Dim font As PdfFont = doc.AddFont(PdfStandardFont.Helvetica)
font.Size = 16

' add a new page to the document
Dim page As PdfPage = doc.AddPage()

' create a new text element and add it to the page
Dim text As New PdfTextElement(0, 0, _
    SelectPdf.Samples.Helper.SomeVeryLongText(), font)
page.Add(text)

' save pdf document
doc.Save(Response, False, "Sample.pdf")

' close pdf document
doc.Close()

Reference

PdfDocument

PdfCompressionLevel