Document Rendering

Convert a Document to Images

This small sample shows how to render (convert to images) a PDF document using PDFBox.

:::java String filename = "YOURFILENAMEHERE.pdf";

// open the document PDDocument doc = PDDocument.loadNonSeq(new File(filename), null);

boolean b; List pages = doc.getDocumentCatalog().getAllPages(); for (int p = 0; p < pages.size(); ++p) { // RGB image with 300 dpi BufferedImage bim = pages.get(p).convertToImage(BufferedImage.TYPE_INT_RGB, 300);

// save as PNG with default metadata b = ImageIO.write(bim, "png", new File("rgbpage" + (p+1) + ".png")); if (!b) { // error handling }

// B/W image with 300 dpi bim = pages.get(p).convertToImage(BufferedImage.TYPE_BYTE_BINARY, 300);

// save as TIF with dpi in the metadata // PDFBox will choose the best compression for you - here: CCITT G4 // you need to add jai_imageio.jar to your classpath for this to work b = ImageIOUtil.writeImage(bim, "bwpage-" + (p+1) + ".tif", 300); if (!b) { // error handling } }

doc.close();