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Print pdf file with JAVA Pdfbox scale and auto orientation like acrobat reader

I want to print pdf file that will be like the acrobat reader printing.
i tried with this code:
public static void print3() throws PrinterException, IOException {
PrintService[] services = PrintServiceLookup.lookupPrintServices(null, null);
PrintService service = PrintServiceLookup.lookupDefaultPrintService();
PrintRequestAttributeSet attrs = new HashPrintRequestAttributeSet();
if(service != null)
{
PrintService selection = ServiceUI.printDialog(null, 200, 200, services, service, null, attrs);
PrinterJob job = PrinterJob.getPrinterJob();
PDDocument document = PDDocument.load(new File("C:\\Temp\\test.pdf"));
PDFPageable pageAble = new PDFPageable(document, Orientation.AUTO);
job.setPageable(pageAble);
attrs.remove(OrientationRequested.class);
job.setPrintService(selection);
job.print(attrs);
}
}
but the text go out of the page:
if i print this pdf with acrobat reader with this options:
its working perfect.
i want to know how can i print the page like the acrobat reader with java?
its seems that the auto orientation working because its printing on landscape like he needs, but how can i scale like the acrobat to 54% automatically ?
tnx a lot
Edit:
i tried to create custom pageable by taking the source code of PDFPageable and change the scale in the getPrintable() method like this:
import java.awt.RenderingHints;
import java.awt.print.Book;
import java.awt.print.PageFormat;
import java.awt.print.Paper;
import java.awt.print.Printable;
import org.apache.pdfbox.pdmodel.PDDocument;
import org.apache.pdfbox.pdmodel.PDPage;
import org.apache.pdfbox.pdmodel.common.PDRectangle;
import org.apache.pdfbox.printing.Orientation;
import org.apache.pdfbox.printing.Scaling;
public final class MyPageable extends Book
{
private final PDDocument document;
private final boolean showPageBorder;
private final float dpi;
private final Orientation orientation;
private boolean subsamplingAllowed = false;
private RenderingHints renderingHints = null;
/**
* Creates a new PDFPageable.
*
* #param document the document to print
*/
public MyPageable(PDDocument document)
{
this(document, Orientation.AUTO, false, 0);
}
/**
* Creates a new PDFPageable with the given page orientation.
*
* #param document the document to print
* #param orientation page orientation policy
*/
public MyPageable(PDDocument document, Orientation orientation)
{
this(document, orientation, false, 0);
}
/**
* Creates a new PDFPageable with the given page orientation and with optional page borders
* shown. The image will be rasterized at the given DPI before being sent to the printer.
*
* #param document the document to print
* #param orientation page orientation policy
* #param showPageBorder true if page borders are to be printed
*/
public MyPageable(PDDocument document, Orientation orientation, boolean showPageBorder)
{
this(document, orientation, showPageBorder, 0);
}
/**
* Creates a new PDFPageable with the given page orientation and with optional page borders
* shown. The image will be rasterized at the given DPI before being sent to the printer.
*
* #param document the document to print
* #param orientation page orientation policy
* #param showPageBorder true if page borders are to be printed
* #param dpi if non-zero then the image will be rasterized at the given DPI
*/
public MyPageable(PDDocument document, Orientation orientation, boolean showPageBorder,
float dpi)
{
this.document = document;
this.orientation = orientation;
this.showPageBorder = showPageBorder;
this.dpi = dpi;
}
/**
* Get the rendering hints.
*
* #return the rendering hints or null if none are set.
*/
public RenderingHints getRenderingHints()
{
return renderingHints;
}
/**
* Set the rendering hints. Use this to influence rendering quality and speed. If you don't set
* them yourself or pass null, PDFBox will decide <b><u>at runtime</u></b> depending on the
* destination.
*
* #param renderingHints
*/
public void setRenderingHints(RenderingHints renderingHints)
{
this.renderingHints = renderingHints;
}
/**
* Value indicating if the renderer is allowed to subsample images before drawing, according to
* image dimensions and requested scale.
*
* Subsampling may be faster and less memory-intensive in some cases, but it may also lead to
* loss of quality, especially in images with high spatial frequency.
*
* #return true if subsampling of images is allowed, false otherwise.
*/
public boolean isSubsamplingAllowed()
{
return subsamplingAllowed;
}
/**
* Sets a value instructing the renderer whether it is allowed to subsample images before
* drawing. The subsampling frequency is determined according to image size and requested scale.
*
* Subsampling may be faster and less memory-intensive in some cases, but it may also lead to
* loss of quality, especially in images with high spatial frequency.
*
* #param subsamplingAllowed The new value indicating if subsampling is allowed.
*/
public void setSubsamplingAllowed(boolean subsamplingAllowed)
{
this.subsamplingAllowed = subsamplingAllowed;
}
#Override
public int getNumberOfPages()
{
return document.getNumberOfPages();
}
/**
* {#inheritDoc}
*
* Returns the actual physical size of the pages in the PDF file. May not fit the local printer.
*/
#Override
public PageFormat getPageFormat(int pageIndex)
{
PDPage page = document.getPage(pageIndex);
PDRectangle mediaBox = MyPrintable.getRotatedMediaBox(page);
PDRectangle cropBox = MyPrintable.getRotatedCropBox(page);
// Java does not seem to understand landscape paper sizes, i.e. where width > height, it
// always crops the imageable area as if the page were in portrait. I suspect that this is
// a JDK bug but it might be by design, see PDFBOX-2922.
//
// As a workaround, we normalise all Page(s) to be portrait, then flag them as landscape in
// the PageFormat.
Paper paper;
boolean isLandscape;
if (mediaBox.getWidth() > mediaBox.getHeight())
{
// rotate
paper = new Paper();
paper.setSize(mediaBox.getHeight(), mediaBox.getWidth());
paper.setImageableArea(cropBox.getLowerLeftY(), cropBox.getLowerLeftX(),
cropBox.getHeight(), cropBox.getWidth());
isLandscape = true;
}
else
{
paper = new Paper();
paper.setSize(mediaBox.getWidth(), mediaBox.getHeight());
paper.setImageableArea(cropBox.getLowerLeftX(), cropBox.getLowerLeftY(),
cropBox.getWidth(), cropBox.getHeight());
isLandscape = false;
}
PageFormat format = new PageFormat();
format.setPaper(paper);
// auto portrait/landscape
switch (orientation)
{
case AUTO:
format.setOrientation(isLandscape ? PageFormat.LANDSCAPE : PageFormat.PORTRAIT);
break;
case LANDSCAPE:
format.setOrientation(PageFormat.LANDSCAPE);
break;
case PORTRAIT:
format.setOrientation(PageFormat.PORTRAIT);
break;
default:
break;
}
return format;
}
#Override
public Printable getPrintable(int i)
{
if (i >= getNumberOfPages())
{
throw new IndexOutOfBoundsException(i + " >= " + getNumberOfPages());
}
MyPrintable printable = new MyPrintable(document, Scaling.SHRINK_TO_FIT, showPageBorder, dpi);
printable.setSubsamplingAllowed(subsamplingAllowed);
printable.setRenderingHints(renderingHints);
return printable;
}
}
but the result is the same.

Not able to display digital signature related details using PDVisibleSignDesigner using pdfbox v2.0.8 [duplicate]

Digital text with text and background imageI am trying to digitally sign pdf file using PDFBox in Java with visible text to appear on page similar to one that gets created when manually created in Acrobat. As shown in the image (one with only snap shot I am looking for and another with details of digital signature too), this example shows signing using image file. How to do that?

This code will be included among the samples in the upcoming 2.0.9 release of PDFBox, and the current update can be found in the repository. See also the discussion in PDFBOX-3198. It is more flexible and can include both text and images, or only one of the two, or vector graphics, whatever you want.
/**
* This is a second example for visual signing a pdf. It doesn't use the "design pattern" influenced
* PDVisibleSignDesigner, and doesn't create its complex multilevel forms described in the Adobe
* document
* <a href="https://www.adobe.com/content/dam/acom/en/devnet/acrobat/pdfs/PPKAppearances.pdf">Digital
* Signature Appearances</a>, because this isn't required by the PDF specification. See the
* discussion in December 2017 in PDFBOX-3198.
*
* #author Vakhtang Koroghlishvili
* #author Tilman Hausherr
*/
public class CreateVisibleSignature2 extends CreateSignatureBase
{
private SignatureOptions signatureOptions;
private boolean lateExternalSigning = false;
private File imageFile;
/**
* Initialize the signature creator with a keystore (pkcs12) and pin that
* should be used for the signature.
*
* #param keystore is a pkcs12 keystore.
* #param pin is the pin for the keystore / private key
* #throws KeyStoreException if the keystore has not been initialized (loaded)
* #throws NoSuchAlgorithmException if the algorithm for recovering the key cannot be found
* #throws UnrecoverableKeyException if the given password is wrong
* #throws CertificateException if the certificate is not valid as signing time
* #throws IOException if no certificate could be found
*/
public CreateVisibleSignature2(KeyStore keystore, char[] pin)
throws KeyStoreException, UnrecoverableKeyException, NoSuchAlgorithmException, IOException, CertificateException
{
super(keystore, pin);
}
public File getImageFile()
{
return imageFile;
}
public void setImageFile(File imageFile)
{
this.imageFile = imageFile;
}
public boolean isLateExternalSigning()
{
return lateExternalSigning;
}
/**
* Set late external signing. Enable this if you want to activate the demo code where the
* signature is kept and added in an extra step without using PDFBox methods. This is disabled
* by default.
*
* #param lateExternalSigning
*/
public void setLateExternalSigning(boolean lateExternalSigning)
{
this.lateExternalSigning = lateExternalSigning;
}
/**
* Sign pdf file and create new file that ends with "_signed.pdf".
*
* #param inputFile The source pdf document file.
* #param signedFile The file to be signed.
* #param humanRect rectangle from a human viewpoint (coordinates start at top left)
* #param tsaUrl optional TSA url
* #throws IOException
*/
public void signPDF(File inputFile, File signedFile, Rectangle2D humanRect, String tsaUrl) throws IOException
{
this.signPDF(inputFile, signedFile, humanRect, tsaUrl, null);
}
/**
* Sign pdf file and create new file that ends with "_signed.pdf".
*
* #param inputFile The source pdf document file.
* #param signedFile The file to be signed.
* #param humanRect rectangle from a human viewpoint (coordinates start at top left)
* #param tsaUrl optional TSA url
* #param signatureFieldName optional name of an existing (unsigned) signature field
* #throws IOException
*/
public void signPDF(File inputFile, File signedFile, Rectangle2D humanRect, String tsaUrl, String signatureFieldName) throws IOException
{
if (inputFile == null || !inputFile.exists())
{
throw new IOException("Document for signing does not exist");
}
setTsaUrl(tsaUrl);
// creating output document and prepare the IO streams.
FileOutputStream fos = new FileOutputStream(signedFile);
try (PDDocument doc = PDDocument.load(inputFile))
{
int accessPermissions = SigUtils.getMDPPermission(doc);
if (accessPermissions == 1)
{
throw new IllegalStateException("No changes to the document are permitted due to DocMDP transform parameters dictionary");
}
// Note that PDFBox has a bug that visual signing on certified files with permission 2
// doesn't work properly, see PDFBOX-3699. As long as this issue is open, you may want to
// be careful with such files.
PDSignature signature = null;
PDAcroForm acroForm = doc.getDocumentCatalog().getAcroForm();
PDRectangle rect = null;
// sign a PDF with an existing empty signature, as created by the CreateEmptySignatureForm example.
if (acroForm != null)
{
signature = findExistingSignature(acroForm, signatureFieldName);
if (signature != null)
{
rect = acroForm.getField(signatureFieldName).getWidgets().get(0).getRectangle();
}
}
if (signature == null)
{
// create signature dictionary
signature = new PDSignature();
}
if (rect == null)
{
rect = createSignatureRectangle(doc, humanRect);
}
// Optional: certify
// can be done only if version is at least 1.5 and if not already set
// doing this on a PDF/A-1b file fails validation by Adobe preflight (PDFBOX-3821)
// PDF/A-1b requires PDF version 1.4 max, so don't increase the version on such files.
if (doc.getVersion() >= 1.5f && accessPermissions == 0)
{
SigUtils.setMDPPermission(doc, signature, 2);
}
if (acroForm != null && acroForm.getNeedAppearances())
{
// PDFBOX-3738 NeedAppearances true results in visible signature becoming invisible
// with Adobe Reader
if (acroForm.getFields().isEmpty())
{
// we can safely delete it if there are no fields
acroForm.getCOSObject().removeItem(COSName.NEED_APPEARANCES);
// note that if you've set MDP permissions, the removal of this item
// may result in Adobe Reader claiming that the document has been changed.
// and/or that field content won't be displayed properly.
// ==> decide what you prefer and adjust your code accordingly.
}
else
{
System.out.println("/NeedAppearances is set, signature may be ignored by Adobe Reader");
}
}
// default filter
signature.setFilter(PDSignature.FILTER_ADOBE_PPKLITE);
// subfilter for basic and PAdES Part 2 signatures
signature.setSubFilter(PDSignature.SUBFILTER_ADBE_PKCS7_DETACHED);
signature.setName("Name");
signature.setLocation("Location");
signature.setReason("Reason");
// the signing date, needed for valid signature
signature.setSignDate(Calendar.getInstance());
// do not set SignatureInterface instance, if external signing used
SignatureInterface signatureInterface = isExternalSigning() ? null : this;
// register signature dictionary and sign interface
signatureOptions = new SignatureOptions();
signatureOptions.setVisualSignature(createVisualSignatureTemplate(doc, 0, rect));
signatureOptions.setPage(0);
doc.addSignature(signature, signatureInterface, signatureOptions);
if (isExternalSigning())
{
System.out.println("Signing externally " + signedFile.getName());
ExternalSigningSupport externalSigning = doc.saveIncrementalForExternalSigning(fos);
// invoke external signature service
byte[] cmsSignature = sign(externalSigning.getContent());
// Explanation of late external signing (off by default):
// If you want to add the signature in a separate step, then set an empty byte array
// and call signature.getByteRange() and remember the offset signature.getByteRange()[1]+1.
// you can write the ascii hex signature at a later time even if you don't have this
// PDDocument object anymore, with classic java file random access methods.
// If you can't remember the offset value from ByteRange because your context has changed,
// then open the file with PDFBox, find the field with findExistingSignature() or
// PODDocument.getLastSignatureDictionary() and get the ByteRange from there.
// Close the file and then write the signature as explained earlier in this comment.
if (isLateExternalSigning())
{
// this saves the file with a 0 signature
externalSigning.setSignature(new byte[0]);
// remember the offset (add 1 because of "<")
int offset = signature.getByteRange()[1] + 1;
// now write the signature at the correct offset without any PDFBox methods
try (RandomAccessFile raf = new RandomAccessFile(signedFile, "rw"))
{
raf.seek(offset);
raf.write(Hex.getBytes(cmsSignature));
}
}
else
{
// set signature bytes received from the service and save the file
externalSigning.setSignature(cmsSignature);
}
}
else
{
// write incremental (only for signing purpose)
doc.saveIncremental(fos);
}
}
// Do not close signatureOptions before saving, because some COSStream objects within
// are transferred to the signed document.
// Do not allow signatureOptions get out of scope before saving, because then the COSDocument
// in signature options might by closed by gc, which would close COSStream objects prematurely.
// See https://issues.apache.org/jira/browse/PDFBOX-3743
IOUtils.closeQuietly(signatureOptions);
}
private PDRectangle createSignatureRectangle(PDDocument doc, Rectangle2D humanRect)
{
float x = (float) humanRect.getX();
float y = (float) humanRect.getY();
float width = (float) humanRect.getWidth();
float height = (float) humanRect.getHeight();
PDPage page = doc.getPage(0);
PDRectangle pageRect = page.getCropBox();
PDRectangle rect = new PDRectangle();
// signing should be at the same position regardless of page rotation.
switch (page.getRotation())
{
case 90:
rect.setLowerLeftY(x);
rect.setUpperRightY(x + width);
rect.setLowerLeftX(y);
rect.setUpperRightX(y + height);
break;
case 180:
rect.setUpperRightX(pageRect.getWidth() - x);
rect.setLowerLeftX(pageRect.getWidth() - x - width);
rect.setLowerLeftY(y);
rect.setUpperRightY(y + height);
break;
case 270:
rect.setLowerLeftY(pageRect.getHeight() - x - width);
rect.setUpperRightY(pageRect.getHeight() - x);
rect.setLowerLeftX(pageRect.getWidth() - y - height);
rect.setUpperRightX(pageRect.getWidth() - y);
break;
case 0:
default:
rect.setLowerLeftX(x);
rect.setUpperRightX(x + width);
rect.setLowerLeftY(pageRect.getHeight() - y - height);
rect.setUpperRightY(pageRect.getHeight() - y);
break;
}
return rect;
}
// create a template PDF document with empty signature and return it as a stream.
private InputStream createVisualSignatureTemplate(PDDocument srcDoc, int pageNum, PDRectangle rect) throws IOException
{
try (PDDocument doc = new PDDocument())
{
PDPage page = new PDPage(srcDoc.getPage(pageNum).getMediaBox());
doc.addPage(page);
PDAcroForm acroForm = new PDAcroForm(doc);
doc.getDocumentCatalog().setAcroForm(acroForm);
PDSignatureField signatureField = new PDSignatureField(acroForm);
PDAnnotationWidget widget = signatureField.getWidgets().get(0);
List<PDField> acroFormFields = acroForm.getFields();
acroForm.setSignaturesExist(true);
acroForm.setAppendOnly(true);
acroForm.getCOSObject().setDirect(true);
acroFormFields.add(signatureField);
widget.setRectangle(rect);
// from PDVisualSigBuilder.createHolderForm()
PDStream stream = new PDStream(doc);
PDFormXObject form = new PDFormXObject(stream);
PDResources res = new PDResources();
form.setResources(res);
form.setFormType(1);
PDRectangle bbox = new PDRectangle(rect.getWidth(), rect.getHeight());
float height = bbox.getHeight();
Matrix initialScale = null;
switch (srcDoc.getPage(pageNum).getRotation())
{
case 90:
form.setMatrix(AffineTransform.getQuadrantRotateInstance(1));
initialScale = Matrix.getScaleInstance(bbox.getWidth() / bbox.getHeight(), bbox.getHeight() / bbox.getWidth());
height = bbox.getWidth();
break;
case 180:
form.setMatrix(AffineTransform.getQuadrantRotateInstance(2));
break;
case 270:
form.setMatrix(AffineTransform.getQuadrantRotateInstance(3));
initialScale = Matrix.getScaleInstance(bbox.getWidth() / bbox.getHeight(), bbox.getHeight() / bbox.getWidth());
height = bbox.getWidth();
break;
case 0:
default:
break;
}
form.setBBox(bbox);
PDFont font = PDType1Font.HELVETICA_BOLD;
// from PDVisualSigBuilder.createAppearanceDictionary()
PDAppearanceDictionary appearance = new PDAppearanceDictionary();
appearance.getCOSObject().setDirect(true);
PDAppearanceStream appearanceStream = new PDAppearanceStream(form.getCOSObject());
appearance.setNormalAppearance(appearanceStream);
widget.setAppearance(appearance);
try (PDPageContentStream cs = new PDPageContentStream(doc, appearanceStream))
{
// for 90° and 270° scale ratio of width / height
// not really sure about this
// why does scale have no effect when done in the form matrix???
if (initialScale != null)
{
cs.transform(initialScale);
}
// show background (just for debugging, to see the rect size + position)
cs.setNonStrokingColor(Color.yellow);
cs.addRect(-5000, -5000, 10000, 10000);
cs.fill();
// show background image
// save and restore graphics if the image is too large and needs to be scaled
cs.saveGraphicsState();
cs.transform(Matrix.getScaleInstance(0.25f, 0.25f));
PDImageXObject img = PDImageXObject.createFromFileByExtension(imageFile, doc);
cs.drawImage(img, 0, 0);
cs.restoreGraphicsState();
// show text
float fontSize = 10;
float leading = fontSize * 1.5f;
cs.beginText();
cs.setFont(font, fontSize);
cs.setNonStrokingColor(Color.black);
cs.newLineAtOffset(fontSize, height - leading);
cs.setLeading(leading);
cs.showText("(Signature very wide line 1)");
cs.newLine();
cs.showText("(Signature very wide line 2)");
cs.newLine();
cs.showText("(Signature very wide line 3)");
cs.endText();
}
// no need to set annotations and /P entry
ByteArrayOutputStream baos = new ByteArrayOutputStream();
doc.save(baos);
return new ByteArrayInputStream(baos.toByteArray());
}
}
// Find an existing signature (assumed to be empty). You will usually not need this.
private PDSignature findExistingSignature(PDAcroForm acroForm, String sigFieldName)
{
PDSignature signature = null;
PDSignatureField signatureField;
if (acroForm != null)
{
signatureField = (PDSignatureField) acroForm.getField(sigFieldName);
if (signatureField != null)
{
// retrieve signature dictionary
signature = signatureField.getSignature();
if (signature == null)
{
signature = new PDSignature();
// after solving PDFBOX-3524
// signatureField.setValue(signature)
// until then:
signatureField.getCOSObject().setItem(COSName.V, signature);
}
else
{
throw new IllegalStateException("The signature field " + sigFieldName + " is already signed.");
}
}
}
return signature;
}
/**
* Arguments are
* [0] key store
* [1] pin
* [2] document that will be signed
* [3] image of visible signature
*
* #param args
* #throws java.security.KeyStoreException
* #throws java.security.cert.CertificateException
* #throws java.io.IOException
* #throws java.security.NoSuchAlgorithmException
* #throws java.security.UnrecoverableKeyException
*/
public static void main(String[] args) throws KeyStoreException, CertificateException,
IOException, NoSuchAlgorithmException, UnrecoverableKeyException
{
// generate with
// keytool -storepass 123456 -storetype PKCS12 -keystore file.p12 -genkey -alias client -keyalg RSA
if (args.length < 4)
{
usage();
System.exit(1);
}
String tsaUrl = null;
// External signing is needed if you are using an external signing service, e.g. to sign
// several files at once.
boolean externalSig = false;
for (int i = 0; i < args.length; i++)
{
if (args[i].equals("-tsa"))
{
i++;
if (i >= args.length)
{
usage();
System.exit(1);
}
tsaUrl = args[i];
}
if (args[i].equals("-e"))
{
externalSig = true;
}
}
File ksFile = new File(args[0]);
KeyStore keystore = KeyStore.getInstance("PKCS12");
char[] pin = args[1].toCharArray();
keystore.load(new FileInputStream(ksFile), pin);
File documentFile = new File(args[2]);
CreateVisibleSignature2 signing = new CreateVisibleSignature2(keystore, pin.clone());
signing.setImageFile(new File(args[3]));
File signedDocumentFile;
String name = documentFile.getName();
String substring = name.substring(0, name.lastIndexOf('.'));
signedDocumentFile = new File(documentFile.getParent(), substring + "_signed.pdf");
signing.setExternalSigning(externalSig);
// Set the signature rectangle
// Although PDF coordinates start from the bottom, humans start from the top.
// So a human would want to position a signature (x,y) units from the
// top left of the displayed page, and the field has a horizontal width and a vertical height
// regardless of page rotation.
Rectangle2D humanRect = new Rectangle2D.Float(100, 200, 150, 50);
signing.signPDF(documentFile, signedDocumentFile, humanRect, tsaUrl, "Signature1");
}
/**
* This will print the usage for this program.
*/
private static void usage()
{
System.err.println("Usage: java " + CreateVisibleSignature2.class.getName()
+ " <pkcs12-keystore-file> <pin> <input-pdf> <sign-image>\n" + "" +
"options:\n" +
" -tsa <url> sign timestamp using the given TSA server\n"+
" -e sign using external signature creation scenario");
}
}

GifSequenceWriter Creating White Gif

I need to split an image into separate slides and compile them into a .gif, but the .gif ends up being plain white. Each slide is 32x32 pixels and they are stacked horizontally with no spaces between them. I used the class GifSequenceWriter with my code:
/**
* #param args the command line arguments
* #throws java.io.IOException
*/
public static void main(String[] args) throws IOException {
String image = "Image.png";
BufferedImage entireSelection = ImageIO.read(new File(image));
int numOfSlides = entireSelection.getHeight()/32;
BufferedImage[] slides = new BufferedImage[numOfSlides];
for(int i = 0; i<numOfSlides; i++){
slides[i] = entireSelection.getSubimage(0,i*32, 32, 32);
}
createGif(slides);
}
private static void createGif(BufferedImage[] slides) throws IOException {
ImageOutputStream output = new FileImageOutputStream(new File("FinalGif.gif"));
GifSequenceWriter writer = new GifSequenceWriter(output, slides[0].getType() ,1,false);
for (BufferedImage slide : slides) {
writer.writeToSequence(slide);
}
writer.close();
output.close();
}
I have read on how to use the Writer and I cannot figure out what I am doing wrong.

I was using a .png that had partial transparency which made everything completely transparent. I just removed the transparency which fixed everything

convert int[] to byte array and byte array to image

Trying to store to an image.
bt is byte array
InputStream is = new ByteArrayInputStream(bt);
Image img = ImageIO.read(is);
ImageIO.write(img,"jpg",new File("C:\\home_loan.jpg") );
, please help me,
error -
: cannot find symbol
symbol : method write(java.awt.Image,java.lang.String,java.io.File)
location: class javax.imageio.ImageIO
ImageIO.write(img,"jpg",new File("C:\home_loan.jpg") );
^

First you need to know whether the mapping is one int to one byte or one int to multiple bytes (and how many). Then, if the latter, you need to know whether big-endian or little-endian.
For images you also need to have a clue as to what the image format is (and JPG actually has several variants).

Use a BufferedImage. That is an Image backed by memory, and has two setRGB methods.
Tailor your data by that; otherwise you need to convert the data structure, working on one single BufferedImage.

You can use following methods-
/**
* #param path full path of image
* #return image file for supplied path
*/
private BufferedImage getImage(String path) {
BufferedImage image = null;
File file = new File(path);
try {
image = ImageIO.read(file);
} catch(Exception e) {
e.printStackTrace();
}
return image;
}
/**
* #param userSpaceImage
* #return byte array of supplied image
*/
private byte[] getByteData(BufferedImage userSpaceImage) {
WritableRaster raster = userSpaceImage.getRaster();
DataBufferByte buffer = (DataBufferByte) raster.getDataBuffer();
return buffer.getData();
}
/**
* #param image image-file to save
* #param file to save image to
* #param extension of image file
* #return full path of saved image
*/
private String saveImage(BufferedImage image, File file, String extension) {
try {
ImageIO.write(image, extension, file);
} catch(Exception e) {
e.printStackTrace();
}
return file.getAbsolutePath();
}

Cannot find symbol - variable mText

Hey all i have been writing some code, it allows a user to select a file, a txt file, it then reads the contents of the file and then sends the contents to a printer this case a hp 8600, but on compling i get an error, Cannot find symbol - variable mText, why is this, it should be retriving mText from above as this now should contain all the data from the txt file, what am i doing wrong ?
code:
import java.awt.*;
import java.awt.font.*;
import java.awt.geom.*;
import java.awt.print.*;
import java.text.*;
import java.io.*;
import javax.swing.*;
public class PrintText implements Printable {
// Below the code will allow the user to select a file and then print out the contents of the file
public static void main(String[] args) throws IOException {
//selects the file
JFileChooser chooser = new JFileChooser();
chooser.showOpenDialog(null);
File file = chooser.getSelectedFile();
String filename = file.getName();
//System.out.println("You have selected: " + filename); testing to see if file seleected was right
String path = file.getAbsolutePath();
//Reads contents of file into terminal
//FileReader fr = new FileReader("filename");
// FileReader fr = new FileReader("D:/Documents/" + "filename"));
FileReader fr = new FileReader(path);
BufferedReader br = new BufferedReader(fr);
String mText;
while((mText = br.readLine()) != null) {
//Displays the contents of the file in terminal
System.out.println(mText);
}
//fr.close();
}
//private static final String mText =
// "This is a test to see if this text will be printed "; //This works perfectly fine
private static final AttributedString mStyledText = new AttributedString(mText);
/**
* Print a single page containing some sample text.
*/
static public void printer(String args[]) {
/* Get the representation of the current printer and
* the current print job.
*/
PrinterJob printerJob = PrinterJob.getPrinterJob();
/* Build a book containing pairs of page painters (Printables)
* and PageFormats. This example has a single page containing
* text.
*/
Book book = new Book();
book.append(new PrintText(), new PageFormat());
/* Set the object to be printed (the Book) into the PrinterJob.
* Doing this before bringing up the print dialog allows the
* print dialog to correctly display the page range to be printed
* and to dissallow any print settings not appropriate for the
* pages to be printed.
*/
printerJob.setPageable(book);
/* Show the print dialog to the user. This is an optional step
* and need not be done if the application wants to perform
* 'quiet' printing. If the user cancels the print dialog then false
* is returned. If true is returned we go ahead and print.
*/
boolean doPrint = printerJob.printDialog();
if (doPrint) {
try {
printerJob.print();
} catch (PrinterException exception) {
System.err.println("Printing error: " + exception);
}
}
}
/**
* Print a page of text.
*/
public int print(Graphics g, PageFormat format, int pageIndex) {
/* We'll assume that Jav2D is available.
*/
Graphics2D g2d = (Graphics2D) g;
/* Move the origin from the corner of the Paper to the corner
* of the imageable area.
*/
g2d.translate(format.getImageableX(), format.getImageableY());
/* Set the text color.
*/
g2d.setPaint(Color.black);
/* Use a LineBreakMeasurer instance to break our text into
* lines that fit the imageable area of the page.
*/
Point2D.Float pen = new Point2D.Float();
AttributedCharacterIterator charIterator = mStyledText.getIterator();
LineBreakMeasurer measurer = new LineBreakMeasurer(charIterator, g2d.getFontRenderContext());
float wrappingWidth = (float) format.getImageableWidth();
while (measurer.getPosition() < charIterator.getEndIndex()) {
TextLayout layout = measurer.nextLayout(wrappingWidth);
pen.y += layout.getAscent();
float dx = layout.isLeftToRight()? 0 : (wrappingWidth - layout.getAdvance());
layout.draw(g2d, pen.x + dx, pen.y);
pen.y += layout.getDescent() + layout.getLeading();
}
return Printable.PAGE_EXISTS;
}
}

Currently mText is only defined within the scope of the main method.
You would need to make mText a static class variable is you wish to use it in the constructor of mStyledText:
private static String mText;
Having non-final static class variables is considered bad practice, however—why not create AttributedString in the print method just when its needed:
AttributedString mStyledText = new AttributedString(mText);
Also you have a lot of functionality in the main method. I would move it to a class instance method where you could avoid using any static variables altogether.