Extract a figure from a pdf file

pdfFile = "example.pdf" % String

function extractImagePDF(pdfFile)

import java.io.*

import javax.imageio.ImageIO.*

import org.apache.pdfbox.*

filename = fullfile(pwd,pdfFile);

jFile = File(filename);

document = pdmodel.PDDocument.load(jFile);

catalog = document.getDocumentCatalog();

pages = catalog.getPages();

iter = pages.iterator();

% look for image objects on each page of the PDF

while (iter.hasNext())

page = iter.next();

resources = page.getResources();

pageImages = resources.getXObjectNames;

if ~isempty(pageImages)

imageIter = pageImages.iterator();

i = 1;

% extract each image object from page and write to destination folder

while (imageIter.hasNext())

key = imageIter.next();

if (resources.isImageXObject(key))

xObject = resources.getXObject(key);

img = xObject.getImage();

outputfile = File("Img_"+i +".jpg");

write(img, "jpg", outputfile);

end

i = i+1;

end

end

end

document.close();

end

%% I want to extract Figure 1 (Fig. 1. Geometrical representation of the model), Page 5 from the attached pdf

%% The code I got from this forum but unable to adjust

[Sachin Lodhi]

Hello Minati, please refer to the following Matlab answer post : https://www.mathworks.com/matlabcentral/answers/709623-how-can-i-convert-a-scanned-pdf-to-an-image-using-matlab

[DGM]

I don't know why the java tools can't find it, but here it is. I just used Inkscape to get the object.