Dear Tilman,
Using a sizing parameter solved the problem. Thank you. I found out the
rubberstamp does not get printed, even if it is visible in PDF reader? Why?
On the print dialog, I have selected to print stamp.
Thanks.
Jason
On Mon, Apr 30, 2018 at 6:54 AM, Tilman Hausherr <thaush...@t-online.de>
wrote:
> In the drawXObject call, divide / multiply the size parameters by a float
> value, e.g. 0.5.
>
> TilmaN
>
>
> Am 30.04.2018 um 03:35 schrieb JZ Q:
>
>> Hi everyone,
>>
>> I used a lightly modified example code (RubberstampWithImage) to add
>> rubber stamp to a text field. it works fine except the resolution of image
>> seems to be too low.
>>
>> See below, if I use the image of same pixel width as the box size, the
>> image becomes very blur. But I increase the image, it only shows part of
>> it.
>>
>> So how do I add a clear stamp (image) that fits into the RECT of the text
>> widget? Thanks.
>>
>>
>> Field FQN: broker_sig
>> Image File: broker_signature.png
>> Image Size: (170, 34)
>> Box Size (424.46, 16.25)
>> in inch (5.8952775, 0.22569445)
>> Box Position (135.035, 182.717)
>>
>>
>> public static void addStamp(PDDocument document, PDField selectedField,
>> String imageFilename) throws IOException {
>>
>> PDPage page = selectedField.getWidgets().get(0).getPage();
>>
>> PDRectangle rect = selectedField.getWidgets().get(0).getRectangle();
>> List<PDAnnotation> annotations = page.getAnnotations();
>> PDAnnotationRubberStamp rubberStamp = new PDAnnotationRubberStamp();
>>
>> // create a PDXObjectImage with the given image file
>> PDImageXObject ximage = PDImageXObject.createFromFile(imageFilename,
>> document);
>>
>> // define and set the target rectangle
>> int imgWidth = ximage.getImage().getWidth();
>> int imgHeight = ximage.getImage().getHeight();
>> System.out.println("Field FQN: " + selectedField.getFullyQualifie
>> dName());
>> System.out.println("Image File: " + imageFilename);
>> System.out.println("Image Size: (" + imgWidth + ", " + imgHeight + ")");
>> System.out.println("Box Size (" + rect.getWidth() + ", " +
>> rect.getHeight()
>> + ")");
>> System.out.println("in inch (" + rect.getWidth()/72 + ", " +
>> rect.getHeight()/72 + ")");
>> System.out.println("Box Position (" + rect.getLowerLeftX() + ", " +
>> rect.getLowerLeftY() + ")");
>> // Create a PDFormXObject
>> PDFormXObject form = new PDFormXObject(document);
>> form.setResources(new PDResources());
>> form.setBBox(rect);
>> form.setFormType(1);
>>
>> // adjust the image to the target rectangle and add it to the stream
>> OutputStream os = form.getStream().createOutputStream();
>> //center the object horizontally
>> float imageLeftX = rect.getLowerLeftX() + (rect.getWidth() - imgWidth)/2;
>> drawXObject(ximage, form.getResources(), os, imageLeftX,
>> rect.getLowerLeftY(), imgWidth, imgHeight);
>> os.close();
>>
>> PDAppearanceStream myDic = new PDAppearanceStream(form.getCOSObject());
>> PDAppearanceDictionary appearance = new PDAppearanceDictionary(new
>> COSDictionary());
>> appearance.setNormalAppearance(myDic);
>> rubberStamp.setAppearance(appearance);
>> rubberStamp.setRectangle(rect);
>>
>> // add the new RubberStamp to the document
>> annotations.add(rubberStamp);
>> }
>>
>>
>
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--
Best Wishes,
Jason
