Black Ice is developing the new PDF library that will support the PDF 1.4 file format (not just the Image PDF). This article contains a little sample that shows the usage of the new library. The following code snippet creates a CPDF object and than it loads information from the file. It shows how you can get the number of pages, get images from a page, get the size of a page and rendersa page to a DC or to a BITMAP.

                                                             

// create the PDF object

CPDF pdf;

// load the PDF file

if( !pdf.LoadPDFFile("test.pdf") ){

       AfxMessageBox("PDF loading error!");

}

 

// get the number of pages

int numberOfPages = pdf.GetNumberOfPages();

// get the number of images on page 1

int numberOfImages = pdf.GetNumberOfImages(1);

// if there are any images in the first page then get the 1st image

if( numberOfImages ){

       HANDLE hDIB = pdf.GetImage(1,1);

}

 

// get the size of the 1st page

float width, height;

pdf.GetPageSize(1, width, height);

 

// draw the 1st page to the client DC

CClientDC dc(this);

pdf.DrawPage(dc, 1);

 

// draw the 1st page to a BITMAP

HBITMAP hBMP = pdf.DrawPageToBMP(1);

 

To get all information from the PDF file or from a page of a PDF, you can just call the get functions. To draw a page to a DC (Client DC, Metafile DC, Window DC), you can call the DrawPage function. This is a flexible solution to display the pages of the PDF file. By calling DrawPageToBMP, the pages of the PDF file can be displayed and saved as several image formats.