Example usage for com.itextpdf.text.pdf PdfArray remove

Introduction

In this page you can find the example usage for com.itextpdf.text.pdf PdfArray remove.

Prototype

public PdfObject remove(final int idx) 

Source Link

Document

Remove the element at the specified position from the array.

Usage

From source file:com.poet.ar.remover.AnnotationRemover.java

/**
 * remove content that matches keywords//  w w w  .  j  av a2s  .  c  o  m
 *
 * @param page
 * @return count of removed content
 */
private static int doRemoveContent(PdfDictionary page) {

    // all contents in page i
    PdfArray contentArray = page.getAsArray(PdfName.CONTENTS);
    PdfDictionary resources = page.getAsDict(PdfName.RESOURCES);
    List<Integer> willRemovedIx = new ArrayList<Integer>();

    if (contentArray != null) {

        PdfStream stream = null;
        for (int i = 0; i < contentArray.size(); i++) {

            stream = contentArray.getAsStream(i);

            PRStream pr = (PRStream) stream;

            // TODO // FIXME: 2016/1/27 0027 java.lang.ClassCastException: com.itextpdf.text.pdf.PdfArray cannot be cast to com.itextpdf.text.pdf.PdfLiteral
            // get display text
            //                String text = StreamContentExtractor.extractFromPdfStream(stream, resources);
            //
            //                if (keywords.contains(text)) {
            //                    willRemovedIx.add(i);
            //                }

            try {
                String text = StreamContentExtractor.extractFromPdfStream(stream, resources);

                if (keywords.contains(text)) {
                    willRemovedIx.add(i);
                }
            } catch (Exception ex) {
            }

        }

        int i = 0;
        for (Integer ix : willRemovedIx) {
            contentArray.remove(ix - i++);
        }
    }

    return willRemovedIx.size();
}

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From source file:com.poet.ar.remover.AnnotationRemover.java

/**
 * remove annotation that matches keywords
 *
 * @param page//from w  ww . j a  va2  s  . co m
 * @return count of removed annotations
 */
private static int doRemoveAnnotation(PdfDictionary page) {

    // all annotations in page i
    PdfArray annoArray = page.getAsArray(PdfName.ANNOTS);
    List<Integer> willRemovedIx = new ArrayList<Integer>();

    if (annoArray != null) {

        PdfDictionary annotation = null;
        PdfDictionary a = null;
        PdfString uri = null;
        for (int i = 0; i < annoArray.size(); i++) {

            annotation = annoArray.getAsDict(i);

            if (annotation == null) {
                continue;
            }

            a = annotation.getAsDict(PdfName.A);

            if (a == null) {
                continue;
            }

            uri = a.getAsString(PdfName.URI);

            if (uri == null) {
                continue;
            }

            String uriStr = uri.toString().trim();

            if (keywords.contains(uriStr)) {
                willRemovedIx.add(i);
            }

        }

        int i = 0;
        for (Integer ix : willRemovedIx) {
            annoArray.remove(ix - i++);
        }

    }

    return willRemovedIx.size();
}

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From source file:mkl.testarea.itext5.pdfcleanup.StrictPdfCleanUpProcessor.java

License:Open Source License

/**
 * Deletes redact annotations from the page and substitutes them with either OverlayText or RO object if it's needed.
 *///w ww . j a  v a 2 s  .c  om
private void deleteRedactAnnots(int pageNum) throws IOException, DocumentException {
    Set<String> indirRefs = redactAnnotIndirRefs.get(pageNum);

    if (indirRefs == null || indirRefs.isEmpty()) {
        return;
    }

    PdfReader reader = pdfStamper.getReader();
    PdfContentByte canvas = pdfStamper.getOverContent(pageNum);
    PdfDictionary pageDict = reader.getPageN(pageNum);
    PdfArray annotsArray = pageDict.getAsArray(PdfName.ANNOTS);

    // j is for access annotRect (i can be decreased, so we need to store additional index,
    // indicating current position in ANNOTS array in case if we don't remove anything
    for (int i = 0, j = 0; i < annotsArray.size(); ++i, ++j) {
        PdfIndirectReference annotIndRef = annotsArray.getAsIndirectObject(i);
        PdfDictionary annotDict = annotsArray.getAsDict(i);

        if (indirRefs.contains(annotIndRef.toString()) || indirRefs.contains(getParentIndRefStr(annotDict))) {
            PdfStream formXObj = annotDict.getAsStream(PdfName.RO);
            PdfString overlayText = annotDict.getAsString(PdfName.OVERLAYTEXT);

            if (fillCleanedArea && formXObj != null) {
                PdfArray rectArray = annotDict.getAsArray(PdfName.RECT);
                Rectangle annotRect = new Rectangle(rectArray.getAsNumber(0).floatValue(),
                        rectArray.getAsNumber(1).floatValue(), rectArray.getAsNumber(2).floatValue(),
                        rectArray.getAsNumber(3).floatValue());

                insertFormXObj(canvas, pageDict, formXObj, clippingRects.get(j), annotRect);
            } else if (fillCleanedArea && overlayText != null && overlayText.toUnicodeString().length() > 0) {
                drawOverlayText(canvas, clippingRects.get(j), overlayText, annotDict.getAsString(PdfName.DA),
                        annotDict.getAsNumber(PdfName.Q), annotDict.getAsBoolean(PdfName.REPEAT));
            }

            annotsArray.remove(i--); // array size is changed, so we need to decrease i
        }
    }

    if (annotsArray.size() == 0) {
        pageDict.remove(PdfName.ANNOTS);
    }
}

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