ExportToJPeg Methods

The ExportToJPeg method is used to export a PDF document to multiple JPEG or BMP files.

 

Syntax

VB:

Sub ExportToJPeg(FileName As String, Resolution As Integer, JPegLevel As Integer)

C#:

void ExportToJPeg(string FileName, int Resolution, int JpegLevel)

C++:

HRESULT ExportToJPeg(BSTR FileName, long Resolution, long JPegLevel)

 

Parameters

FileName

Name of the output file with .jpg extension.

Resolution

72, 150, 300, 600.

JPegLevel

1(highest compression, lowest quality)to 9(lowest compression, highest quality).

0 Creates a Bitmap(.bmp) file with no compression

 

Remarks

The document attribute UseCropBoxWhenExporting can be set to 1 in order to export the portion of each page that is within the margins (CropBox in PDF terminology.) The size of the exported image will be limited to the size of the page excluding the margins.

 

Optimizing the  document is not recommended when exporting to image formats, it slows down the export and the output might be less accurate.

 

This method uses the PageSequence or PageSecuenceStr attributes from Document Object to determine which pages are going to be exported.

 

Example

<Flags>

Public Enum OPTIMIZATION_LEVEL

    NO_OPTIMIZATION = 0

    LINE_OPTIMIZATION = 1

    PARAGRAPH_OPTIMIZATION = 2

    TABLE_OPTIMIZATION = 3

End Enum

 

Sub Sample()

    ' Constants for Activation codes

    Const strLicenseTo As String = "Amyuni PDF Creator Evaluation"

    Const strActivationCode As String = "07EFCDAB010001004282943F2AF19A88F332D9E781E40460727DF8A42847A1BDE06DB61C71E94E2D90424BF8762385335F9D6884E9FC"

 

    ' Initializing PDFCreativeX Object

    Dim pdf As ACPDFCREACTIVEX.PDFCreactiveX = New ACPDFCREACTIVEX.PDFCreactiveX()

 

    ' Set license key

    pdf.SetLicenseKey(strLicenseTo, strActivationCode)

 

    ' Open an existent PDF file

    Dim fileName As String = "c:\temp\PDFdocument.pdf"

    Dim password As String = ""

    pdf.Open(fileName, password)

 

    ' Recommended optimization to export the file

    Dim level As Integer = OPTIMIZATION_LEVEL.NO_OPTIMIZATION

    pdf.OptimizeDocument(level)

 

    ' Exporting

    Dim outFileName As String = "C:\temp\file.jpg"

    Dim resolution As Integer = 300

    Dim jpeplevel As Integer = 7

    pdf.ExportToJPeg(outFileName, resolution, jpeplevel)

 

    ' destroy objects

    pdf = Nothing

End Sub

[Flags]

public enum OPTIMIZATION_LEVEL

{

    NO_OPTIMIZATION = 0,

    LINE_OPTIMIZATION = 1,

    PARAGRAPH_OPTIMIZATION = 2,

    TABLE_OPTIMIZATION = 3

}

static void Sample()

{

    // Constants for Activation codes

    const string strLicenseTo = "Amyuni PDF Creator Evaluation";

    const string strActivationCode = "07EFCDAB010001004282943F2AF19A88F332D9E781E40460727DF8A42847A1BDE06DB61C71E94E2D90424BF8762385335F9D6884E9FC";

 

    // Initializing PDFCreativeX Object

    ACPDFCREACTIVEX.PDFCreactiveX pdf = new ACPDFCREACTIVEX.PDFCreactiveX();

 

    // Set license key

    pdf.SetLicenseKey(strLicenseTo, strActivationCode);

 

    // Open an existent PDF file

    string fileName = @"c:\temp\PDFdocument.pdf";

    string password = "";

    pdf.Open(fileName, password);

 

    // Recommended optimization to export the file

    int level = (int)OPTIMIZATION_LEVEL.NO_OPTIMIZATION;

    pdf.OptimizeDocument(level);

 

    // Exporting

    string outFileName = "C:\temp\file.jpg";

    int resolution = 300;

    int jpeplevel = 7;

    pdf.ExportToJPeg(outFileName, resolution, jpeplevel);

 

    // destroy objects

    pdf = null;

}

#include <iostream>

#import "c:\users\amyuni\pdfcreactivex.dll" no_namespace

 

using namespace std;

 

enum OPTIMIZATION_LEVEL

{

    NO_OPTIMIZATION = 0,

    LINE_OPTIMIZATION = 1,

    PARAGRAPH_OPTIMIZATION = 2,

    TABLE_OPTIMIZATION = 3

};

 

int main()

{

    // Constants for Activation codes

    bstr_t strLicenseTo = "Amyuni PDF Creator Evaluation";

    bstr_t strActivationCode = "07EFCDAB010001004282943F2AF19A88F332D9E781E40460727DF8A42847A1BDE06DB61C71E94E2D90424BF8762385335F9D6884E9FC";

 

    // Initialize the COM subsystem

    CoInitialize(0);

 

    // IPDFCreactiveXPtr is a smart pointer type defined in pdfcreactivex.tlh,

    // the type library header file generated by the #import instruction above

    IPDFCreactiveXPtr pdf;

 

    // Create the PDFCreactiveX instance

    pdf.CreateInstance(__uuidof(PDFCreactiveX));

 

    // set license key

    pdf->SetLicenseKey(_bstr_t(strLicenseTo), _bstr_t(strActivationCode));

 

    // Open an existent PDF file

    _bstr_t fileName = "c:\\temp\\PDFdocument.pdf";

    _bstr_t password = "";

    pdf->Open(fileName, password);

 

    // Recommended optimization to export the file

    int level = (int)NO_OPTIMIZATION;

    pdf->OptimizeDocument(level);

 

    // Exporting

    bstr_t outFileName = "C:\temp\file.jpg";

    int resolution = 300;

    int jpeplevel = 7;

    pdf->ExportToJPeg(outFileName, resolution, jpeplevel);

 

    // destroy objects

    pdf = NULL;

 

    return 0;

}

' Optimization level

Const NO_OPTIMIZATION = 0

Const LINE_OPTIMIZATION = 1

Const PARAGRAPH_OPTIMIZATION = 2

Const TABLE_OPTIMIZATION = 3

 

' Constants for Activation codes

Const strLicenseTo = "Amyuni PDF Creator Evaluation"

Const strActivationCode = "07EFCDAB010001004282943F2AF19A88F332D9E781E40460727DF8A42847A1BDE06DB61C71E94E2D90424BF8762385335F9D6884E9FC"

 

' Initializing PDFCreativeX Object

Dim pdf

Set pdf = CreateObject("PDFCreactiveX.PDFCreactiveX.6.5")

 

' Set license key

pdf.SetLicenseKey strLicenseTo, strActivationCode

 

' Open an existent PDF file

Dim fileName

fileName = "c:\temp\PDFdocument.pdf"

Dim password

password  = ""

pdf.Open fileName, password

 

' Recommended optimization to export the file

Dim level

level = NO_OPTIMIZATION

pdf.OptimizeDocument level

 

' Exporting

Dim outFileName

outFileName = "C:\temp\file.jpg"

Dim resolution

resolution = 300

Dim jpeplevel

jpeplevel  = 7

pdf.ExportToJPeg outFileName, resolution, jpeplevel

 

' destroy objects

Set pdf = Nothing