HOW TO: loop through a PDF and find a text boxes- images etc

Aspose.PDF Product Family
1

Hi,


I have a project where I need to identify each element in a PDF.

The elements will be a mixture of images and text boxes.

I want to open document, loop through it and identify what the element is, for image get its x,y,width,height,colorspace.

For text box I want to get: x,y, width,height, font details.

I am having trouble getting started, can anyone point me in the right direction please.

Thanks!
2

Hi joshua,


Thanks for contacting support.

Please check following documentation pages for details
Moreover, you can use following code snippet to extract the images and get its properties.

c#

Aspose.Pdf.Document doc = new Aspose.Pdf.Document(dataDir+ “ImagePlacement.pdf”);
ImagePlacementAbsorber abs = new ImagePlacementAbsorber();
// Load the contents of first page
doc.Pages[1].Accept(abs);
foreach (ImagePlacement imagePlacement in abs.ImagePlacements)
{
// Get image properties
Console.Out.WriteLine(“image width:” + imagePlacement.Rectangle.Width);
Console.Out.WriteLine(“image height:” + imagePlacement.Rectangle.Height);
Console.Out.WriteLine(“image LLX:” + imagePlacement.Rectangle.LLX);
Console.Out.WriteLine(“image LLY:” + imagePlacement.Rectangle.LLY);
Console.Out.WriteLine(“image horizontal resolution:” + imagePlacement.Resolution.X);
Console.Out.WriteLine(“image vertical resolution:” + imagePlacement.Resolution.Y);

// Retrieve image with visible dimensions
Bitmap scaledImage;
using (MemoryStream imageStream = new MemoryStream())
{
// Retrieve image from resources
imagePlacement.Image.Save(imageStream, System.Drawing.Imaging.ImageFormat.Png);
Bitmap resourceImage = (Bitmap)Bitmap.FromStream(imageStream);

// Create bitmap with actual dimensions
scaledImage = new Bitmap(resourceImage, (int)imagePlacement.Rectangle.Width, (int)imagePlacement.Rectangle.Height);
}
}

If you need further assistance, please feel free to contact us.

Best Regards,