I have PDF document with some images and one placeholder where I have to put image. My problem is that the image always has size of placeholder when i run program. Where I am wrong?
Image size is (320x120).
PDDocument pdfDocument = PDDocument.load(pdfDocumentBase64);
PDImageXObject editObject =LosslessFactory.createFromImage(pdfDocument, signatureImage);
PDPageTree list = pdfDocument.getPages();
pdfDocument.getNumberOfPages();
for (PDPage page : list) {
PDResources pdResources = page.getResources();
for (COSName name : pdResources.getXObjectNames()) {
PDImageXObject o = (PDImageXObject) pdResources.getXObject(name);
if (o instanceof PDImageXObject && o.getHeight() < 100) {
int a = o.getWidth(); // 10 --- placeholder
int b = o.getHeight(); // 10 ---- placeholder
pdResources.put(name,editObject);
}
}
}
Related
I ran into a very tough issue. We have forms that were supposed to be filled out, but some people used annotation freeform text comments in foxit instead of filling the form fields, so the annotations never flatten. When our render software generates the final document annotations are not included.
The solution I tried is to basically go through the document, get the annotation text content and write it to the pdf so it is on the final document then remove the actual annotation, but I run into an issue where I don't know the font the annotation is using, line space, etc so cannot find out how to get it from a pdfbox to recreate exacactly as the annotation looks on the unflattened form.
Basically I want to flatten annotatations that are freeform created in foxit (The typewriter comment feature)
Here is the code. It is working, but again I am struggling with figuring out how to get the annotations to write to my final pdf document. Again flatten on the acroform is not working because these are not acroform fields! The live code filters out anything that is not a freetext type annotation, but below code should show my issue.
public static void main(String [] args)
{
String startDoc = "C:/test2/test.pdf";
String finalFlat = "C:/test2/test_FLAT.pdf";
try {
// for testing
try {
//BasicConfigurator.configure();
File myFile = new File(startDoc);
PDDocument pdDoc = PDDocument.load( myFile );
PDDocumentCatalog pdCatalog = pdDoc.getDocumentCatalog();
PDAcroForm pdAcroForm = pdCatalog.getAcroForm();
// set the NeedApperances flag
pdAcroForm.setNeedAppearances(false);
// correct the missing page link for the annotations
for (PDPage page : pdDoc.getPages()) {
for (PDAnnotation annot : page.getAnnotations()) {
System.out.println(annot.getContents());
System.out.println(annot.isPrinted());
System.out.println(annot.isLocked());
System.out.println(annot.getAppearance().toString());
PDPageContentStream contentStream = new PDPageContentStream(pdDoc, page, PDPageContentStream.AppendMode.APPEND,true,true);
int fontHeight = 14;
contentStream.setFont(PDType1Font.TIMES_ROMAN, fontHeight);
float height = annot.getRectangle().getLowerLeftY();
String s = annot.getContents().replaceAll("\t", " ");
String ss[] = s.split("\\r");
for(String sss : ss)
{
contentStream.beginText();
contentStream.newLineAtOffset(annot.getRectangle().getLowerLeftX(),height );
contentStream.showText(sss);
height = height + fontHeight * 2 ;
contentStream.endText();
}
contentStream.close();
page.getAnnotations().remove(annot);
}
}
pdAcroForm.flatten();
pdDoc.save(finalFlat);
pdDoc.close();
}
catch (Exception e) {
e.printStackTrace();
}
}
catch (Exception e) {
System.err.println("Exception: " + e.getLocalizedMessage());
}
}
This was not a fun one. After a million different tests, and I STILL do not understand all the nuances, but this is the version that appeas to flatten all pdf files and annotations if they are visible on PDF. Tested about half a dozen pdf creators and if an annotation is visible on a page this hopefully flattens it. I suspect there is a better way by pulling the matrix and transforming it and what not, but this is the only way I got it to work everywhere.
public static void flattenv3(String startDoc, String endDoc) {
org.apache.log4j.Logger.getRootLogger().setLevel(org.apache.log4j.Level.INFO);
String finalFlat = endDoc;
try {
try {
//BasicConfigurator.configure();
File myFile = new File(startDoc);
PDDocument pdDoc = PDDocument.load(myFile);
PDDocumentCatalog pdCatalog = pdDoc.getDocumentCatalog();
PDAcroForm pdAcroForm = pdCatalog.getAcroForm();
if (pdAcroForm != null) {
pdAcroForm.setNeedAppearances(false);
pdAcroForm.flatten();
}
// set the NeedApperances flag
boolean isContentStreamWrapped;
int ii = 0;
for (PDPage page: pdDoc.getPages()) {
PDPageContentStream contentStream;
isContentStreamWrapped = false;
List < PDAnnotation > annotations = new ArrayList < > ();
for (PDAnnotation annotation: page.getAnnotations()) {
if (!annotation.isInvisible() && !annotation.isHidden() && annotation.getNormalAppearanceStream() != null)
{
ii++;
if (ii > 1) {
// contentStream.close();
// continue;
}
if (!isContentStreamWrapped) {
contentStream = new PDPageContentStream(pdDoc, page, AppendMode.APPEND, true, true);
isContentStreamWrapped = true;
} else {
contentStream = new PDPageContentStream(pdDoc, page, AppendMode.APPEND, true);
}
PDAppearanceStream appearanceStream = annotation.getNormalAppearanceStream();
PDFormXObject fieldObject = new PDFormXObject(appearanceStream.getCOSObject());
contentStream.saveGraphicsState();
boolean needsTranslation = resolveNeedsTranslation(appearanceStream);
Matrix transformationMatrix = new Matrix();
boolean transformed = false;
float lowerLeftX = annotation.getNormalAppearanceStream().getBBox().getLowerLeftX();
float lowerLeftY = annotation.getNormalAppearanceStream().getBBox().getLowerLeftY();
PDRectangle bbox = appearanceStream.getBBox();
PDRectangle fieldRect = annotation.getRectangle();
float xScale = fieldRect.getWidth() - bbox.getWidth();
transformed = true;
lowerLeftX = fieldRect.getLowerLeftX();
lowerLeftY = fieldRect.getLowerLeftY();
if (bbox.getLowerLeftX() <= 0 && bbox.getLowerLeftY() < 0 && Math.abs(xScale) < 1) //BASICALLY EQUAL TO 0 WITH ROUNDING
{
lowerLeftY = fieldRect.getLowerLeftY() - bbox.getLowerLeftY();
if (bbox.getLowerLeftX() < 0 && bbox.getLowerLeftY() < 0) //THis is for the o
{
lowerLeftX = lowerLeftX - bbox.getLowerLeftX();
}
} else if (bbox.getLowerLeftX() == 0 && bbox.getLowerLeftY() < 0 && xScale >= 0) {
lowerLeftX = fieldRect.getUpperRightX();
} else if (bbox.getLowerLeftY() <= 0 && xScale >= 0) {
lowerLeftY = fieldRect.getLowerLeftY() - bbox.getLowerLeftY() - xScale;
} else if (bbox.getUpperRightY() <= 0) {
if (annotation.getNormalAppearanceStream().getMatrix().getShearY() < 0) {
lowerLeftY = fieldRect.getUpperRightY();
lowerLeftX = fieldRect.getUpperRightX();
}
} else {
}
transformationMatrix.translate(lowerLeftX,
lowerLeftY);
contentStream.transform(transformationMatrix);
contentStream.drawForm(fieldObject);
contentStream.restoreGraphicsState();
contentStream.close();
}
}
page.setAnnotations(annotations);
}
pdDoc.save(finalFlat);
pdDoc.close();
File file = new File(finalFlat);
// Desktop.getDesktop().browse(file.toURI());
} catch (Exception e) {
e.printStackTrace();
}
} catch (Exception e) {
System.err.println("Exception: " + e.getLocalizedMessage());
}
}
}
I'm trying to extract all the images from pdf by using the below code, it work fine for all images except the images with color space indexed.
try (final PDDocument document = PDDocument.load(new File("./pdfs/22.pdf"))){
PDPageTree list = document.getPages();
for (PDPage page : list) {
PDResources pdResources = page.getResources();
int i = 1;
for (COSName name : pdResources.getXObjectNames()) {
PDXObject o = pdResources.getXObject(name);
if (o instanceof PDImageXObject) {
PDImageXObject image = (PDImageXObject)o;
String filename = OUTPUT_DIR + "extracted-image-" + i + ".png";
ImageIO.write(image.getImage(), "png", new File(filename));
i++;
}
}
}
} catch (IOException e){
System.err.println("Exception while trying to create pdf document - " + e);
}
Do i miss something? How can I extract such type of images??
Assuming I have a PDF document with a text field with some font and size defined, is there a way to determine if some text will fit inside the field rectangle using PDFBox?
I'm trying to avoid cases where text is not fully displayed inside the field, so in case the text overflows given the font and size, I would like to change the font size to Auto (0).
This code recreates the appearance stream to be sure that it exists so that there is a bbox (which can be a little bit smaller than the rectangle).
public static void main(String[] args) throws IOException
{
// file can be found at https://issues.apache.org/jira/browse/PDFBOX-142
// https://issues.apache.org/jira/secure/attachment/12742551/Testformular1.pdf
try (PDDocument doc = PDDocument.load(new File("Testformular1.pdf")))
{
PDAcroForm acroForm = doc.getDocumentCatalog().getAcroForm();
PDTextField field = (PDTextField) acroForm.getField("Name");
PDAnnotationWidget widget = field.getWidgets().get(0);
// force generation of appearance stream
field.setValue(field.getValue());
PDRectangle rectangle = widget.getRectangle();
PDAppearanceEntry ap = widget.getAppearance().getNormalAppearance();
PDAppearanceStream appearanceStream = ap.getAppearanceStream();
PDRectangle bbox = appearanceStream.getBBox();
float fieldWidth = Math.min(bbox.getWidth(), rectangle.getWidth());
String defaultAppearance = field.getDefaultAppearance();
System.out.println(defaultAppearance);
// Pattern must be improved, font may have numbers
// /Helv 12 Tf 0 g
final Pattern p = Pattern.compile("\\/([A-z]+) (\\d+).+");
Matcher m = p.matcher(defaultAppearance);
if (!m.find() || m.groupCount() != 2)
{
System.out.println("oh-oh");
System.exit(-1);
}
String fontName = m.group(1);
int fontSize = Integer.parseInt(m.group(2));
PDResources resources = appearanceStream.getResources();
if (resources == null)
{
resources = acroForm.getDefaultResources();
}
PDFont font = resources.getFont(COSName.getPDFName(fontName));
float stringWidth = font.getStringWidth("Tilman Hausherr Tilman Hausherr");
System.out.println("stringWidth: " + stringWidth * fontSize / 1000);
System.out.println("field width: " + fieldWidth);
}
}
The output is:
/Helv 12 Tf 0 g
stringWidth: 180.7207
field width: 169.29082
i'm trying to get the field page in my project,
and i dont know how to get the page number for each field and field.
i have this code:
String formTemplate = "Template.pdf";
String filledForm = "filledForm.pdf";
PDDocument pdfDocument = PDDocument.load(new File(formTemplate));
PDAcroForm acroForm = pdfDocument.getDocumentCatalog().getAcroForm();
if (acroForm != null)
{
PDField field = acroForm.getField( "name" );
field.getAcroForm().setNeedAppearances(true);
field.setValue("my name");
acroForm.getField( "date" );
field.setValue("my date");
}
pdfDocument.save(filledForm);
pdfDocument.close();
}
How do I get the page numbers of the fields?
thanks
ron
This will show you on what page(s) (0-based) the field appears:
PDField field = acroForm.getField( "date" );
for (PDAnnotationWidget widget : field.getWidgets())
{
PDPage page = widget.getPage();
if (page == null)
{
// incorrect PDF. Plan B: try all pages to check the annotations.
for (int p = 0; p < doc.getNumberOfPages(); ++p)
{
List<PDAnnotation> annotations = doc.getPage(p).getAnnotations();
for (PDAnnotation ann : annotations)
{
if (ann.getCOSObject() == widget.getCOSObject())
{
System.out.println("found at page: " + p);
break;
}
}
}
continue;
}
int pageNum = pdfDocument.getPages().indexOf(page);
System.out.println("found at page: " + pageNum);
}
I am processing some large pdf files, (up to 100MB and about 2000 pages), with pdfbox. Some of the pages contain a QR code, I want to split those files into smaller ones with the pages from one QR code to the next.
I got this, but the result file sizes are the same as the source file. I mean, if I cut a 100MB pdf file into a ten files I am getting ten files 100MB each.
This is the code:
PDDocument documentoPdf =
PDDocument.loadNonSeq(new File("myFile.pdf"),
new RandomAccessFile(new File("./tmp/temp"), "rw"));
int numPages = documentoPdf.getNumberOfPages();
List pages = documentoPdf.getDocumentCatalog().getAllPages();
int previusQR = 0;
for(int i =0; i<numPages; i++){
PDPage page = (PDPage) pages.get(i);
BufferedImage firstPageImage =
page.convertToImage(BufferedImage.TYPE_USHORT_565_RGB , 200);
String qrText = readQRWithQRCodeMultiReader(firstPageImage, hintMap);
if(qrText != null and i!=0){
PDDocument outputDocument = new PDDocument();
for(int j = previusQR; j<i; j++){
outputDocument.importPage((PDPage)pages.get(j));
}
File f = new File("./splitting_files/"+previusQR+".pdf");
outputDocument.save(f);
outputDocument.close();
documentoPdf.close();
}
I also tried the following code for storing the new file:
PDDocument outputDocument = new PDDocument();
for(int j = previusQR; j<i; j++){
PDStream src = ((PDPage)pages.get(j)).getContents();
PDStream streamD = new PDStream(outputDocument);
streamD.addCompression();
PDPage newPage = new PDPage(new
COSDictionary(((PDPage)pages.get(j)).getCOSDictionary()));
newPage.setContents(streamD);
byte[] buf = new byte[10240];
int amountRead = 0;
InputStream is = null;
OutputStream os = null;
is = src.createInputStream();
os = streamD.createOutputStream();
while((amountRead = is.read(buf,0,10240)) > -1) {
os.write(buf, 0, amountRead);
}
outputDocument.addPage(newPage);
}
File f = new File("./splitting_files/"+previusQR+".pdf");
outputDocument.save(f);
outputDocument.close();
But this code creates files which lacks some content and also have the same size than the original.
How can I create smaller pdfs files from a larger one?
Is it posible with PDFBox? Is there any other library with which I can transform a single page into an image (for qr recognition), and also allows me to split a big pdf file into smaller ones?
Thx!
Thx! Tilman you are right, the PDFSplit command generates smaller files. I checked the PDFSplit code out and found that it removes the page links to avoid not needed resources.
Code extracted from Splitter.class :
private void processAnnotations(PDPage imported) throws IOException
{
List<PDAnnotation> annotations = imported.getAnnotations();
for (PDAnnotation annotation : annotations)
{
if (annotation instanceof PDAnnotationLink)
{
PDAnnotationLink link = (PDAnnotationLink)annotation;
PDDestination destination = link.getDestination();
if (destination == null && link.getAction() != null)
{
PDAction action = link.getAction();
if (action instanceof PDActionGoTo)
{
destination = ((PDActionGoTo)action).getDestination();
}
}
if (destination instanceof PDPageDestination)
{
// TODO preserve links to pages within the splitted result
((PDPageDestination) destination).setPage(null);
}
}
else
{
// TODO preserve links to pages within the splitted result
annotation.setPage(null);
}
}
}
So eventually my code looks like this:
PDDocument documentoPdf =
PDDocument.loadNonSeq(new File("docs_compuestos/50.pdf"), new RandomAccessFile(new File("./tmp/t"), "rw"));
int numPages = documentoPdf.getNumberOfPages();
List pages = documentoPdf.getDocumentCatalog().getAllPages();
int previusQR = 0;
for(int i =0; i<numPages; i++){
PDPage firstPage = (PDPage) pages.get(i);
String qrText ="";
BufferedImage firstPageImage = firstPage.convertToImage(BufferedImage.TYPE_USHORT_565_RGB , 200);
firstPage =null;
try {
qrText = readQRWithQRCodeMultiReader(firstPageImage, hintMap);
} catch (NotFoundException e) {
e.printStackTrace();
} finally {
firstPageImage = null;
}
if(i != 0 && qrText!=null){
PDDocument outputDocument = new PDDocument();
outputDocument.setDocumentInformation(documentoPdf.getDocumentInformation());
outputDocument.getDocumentCatalog().setViewerPreferences(
documentoPdf.getDocumentCatalog().getViewerPreferences());
for(int j = previusQR; j<i; j++){
PDPage importedPage = outputDocument.importPage((PDPage)pages.get(j));
importedPage.setCropBox( ((PDPage)pages.get(j)).findCropBox() );
importedPage.setMediaBox( ((PDPage)pages.get(j)).findMediaBox() );
// only the resources of the page will be copied
importedPage.setResources( ((PDPage)pages.get(j)).getResources() );
importedPage.setRotation( ((PDPage)pages.get(j)).findRotation() );
processAnnotations(importedPage);
}
File f = new File("./splitting_files/"+previusQR+".pdf");
previusQR = i;
outputDocument.save(f);
outputDocument.close();
}
}
}
Thank you very much!!