Add image to acrofield in iText?

Question

I am trying to fill a PDF using acrofields, I can add string data fine, but I have problems adding images to acrofields. This is my code for adding string data.

File f = new File("F:/Test/Agreement.pdf"); InputStream sourceTemplatePDFUrlStream = new BufferedInputStream(new FileInputStream(f)); File destinationFile = new File("F:/Test/ag1.pdf"); PdfReader reader = new PdfReader(sourceTemplatePDFUrlStream); PdfStamper stamper = new PdfStamper(reader, new FileOutputStream( destinationFile)); AcroFields form = stamper.getAcroFields(); Image img = Image.getInstance("E:/signature/signature.png"); Set fields = form.getFields().keySet(); Hashtable val = new Hashtable(); val.put("name", "xxx" ); val.put("city_street_zip", "xxx"+" "+"xxx"+" "+"xxx"); val.put("chck_1", "Yes" ); val.put("chck_2", "No"); val.put("chck_3", "Yes" ); val.put("street_address", "xxx" ); val.put("account_num", "1234"); Enumeration enumeration = val.keys(); // iterate through Hashtable val keys Enumeration while (enumeration.hasMoreElements()) { String nextElement = (String) enumeration.nextElement(); String nextElementValue = (String) val.get(nextElement); //System.out.println(nextElement + ":=================fillData===================:" + nextElementValue); form.setField(nextElement, nextElementValue); } //Form flattening makes the form non-editable and saveable with the //form val filled in stamper.setFormFlattening(true); stamper.close(); 

Answer 1

The "official" way to do this is to have the Button field as a placeholder for the image and replace the button "icon" as described in my book :

 PushbuttonField ad = form.getNewPushbuttonFromField(imageFieldName); ad.setLayout(PushbuttonField.LAYOUT_ICON_ONLY); ad.setProportionalIcon(true); ad.setImage(Image.getInstance("E:/signature/signature.png")); form.replacePushbuttonField("advertisement", ad.getField()); 

See ReplaceIcon.java for a complete code example.

DISCLAIMER: I am the original developer of iText and author of the books "iText in Action".

Answer 2

The following solution worked:

 public static void addImage(PdfStamper stamper,AcroFields form,String field,String fieldValue){ try{ System.out.println("Field "+field); java.util.List<AcroFields.FieldPosition> photograph = form.getFieldPositions(field); if(photograph!=null && photograph.size()>0){ Rectangle rect= photograph.get(0).position; //if(StringUtils.isNotBlank(fieldValue)){ Image img = Image.getInstance(fieldValue); img.scaleToFit(rect.getWidth(), rect.getHeight()); img.setBorder(2); img.setAbsolutePosition( photograph.get(0).position.getLeft() + (rect.getWidth() - img.getScaledWidth() ) , photograph.get(0).position.getTop() - (rect.getHeight())); PdfContentByte cb = stamper.getOverContent((int)photograph.get(0).page); cb.addImage(img); //} } }catch(Exception e){ e.printStackTrace(); } } 

calling the above method:

 addImage(stamper, form, "CustomerSign", "E:/signature/signature.png"); 

where CustomerSign is AcroField

Answer 3

You can try adding this with code to add an image.

 PdfContentByte content = stamper.getOverContent(reader.getNumberOfPages()); Image image = Image.getInstance(new URL("E:/signature/signature.png")); image.setAbsolutePosition(450,650); image.scaleAbsolute(200,200); content.addImage(image); reader.close(); return output.toByteArray();