PdfStream getFormXObject() throws IOException { PdfStream s = new PdfStream(content.toByteArray()); s.put(PdfName.TYPE, PdfName.XOBJECT); s.put(PdfName.SUBTYPE, PdfName.PS); s.flateCompress(); return s; }
public void alterContents() throws IOException { if (over == null && under == null) return; PdfArray ar = null; PdfObject content = PdfReader.getPdfObject(pageN.get(PdfName.CONTENTS), pageN); if (content == null) { ar = new PdfArray(); pageN.put(PdfName.CONTENTS, ar); } else if (content.isArray()) { ar = (PdfArray) content; } else if (content.isStream()) { ar = new PdfArray(); ar.add(pageN.get(PdfName.CONTENTS)); pageN.put(PdfName.CONTENTS, ar); } else { ar = new PdfArray(); pageN.put(PdfName.CONTENTS, ar); } ByteBuffer out = new ByteBuffer(); if (under != null) { out.append(PdfContents.SAVESTATE); applyRotation(pageN, out); out.append(under.getInternalBuffer()); out.append(PdfContents.RESTORESTATE); } if (over != null) out.append(PdfContents.SAVESTATE); PdfStream stream = new PdfStream(out.toByteArray()); stream.flateCompress(cstp.getCompressionLevel()); PdfIndirectReference ref1 = cstp.addToBody(stream).getIndirectReference(); ar.addFirst(ref1); out.reset(); if (over != null) { out.append(' '); out.append(PdfContents.RESTORESTATE); out.append(PdfContents.SAVESTATE); applyRotation(pageN, out); out.append(over.getInternalBuffer()); out.append(PdfContents.RESTORESTATE); stream = new PdfStream(out.toByteArray()); stream.flateCompress(cstp.getCompressionLevel()); ar.add(cstp.addToBody(stream).getIndirectReference()); } pageN.put(PdfName.RESOURCES, pageResources.getResources()); }
/** * Creates a ToUnicode CMap to allow copy and paste from Acrobat. * * @param metrics metrics[0] contains the glyph index and metrics[2] contains the Unicode code * @return the stream representing this CMap or <CODE>null</CODE> */ public PdfStream getToUnicode(Object metrics[]) { if (metrics.length == 0) return null; StringBuffer buf = new StringBuffer( "/CIDInit /ProcSet findresource begin\n" + "12 dict begin\n" + "begincmap\n" + "/CIDSystemInfo\n" + "<< /Registry (TTX+0)\n" + "/Ordering (T42UV)\n" + "/Supplement 0\n" + ">> def\n" + "/CMapName /TTX+0 def\n" + "/CMapType 2 def\n" + "1 begincodespacerange\n" + "<0000><FFFF>\n" + "endcodespacerange\n"); int size = 0; for (int k = 0; k < metrics.length; ++k) { if (size == 0) { if (k != 0) { buf.append("endbfrange\n"); } size = Math.min(100, metrics.length - k); buf.append(size).append(" beginbfrange\n"); } --size; int metric[] = (int[]) metrics[k]; String fromTo = toHex(metric[0]); buf.append(fromTo).append(fromTo).append(toHex(metric[2])).append('\n'); } buf.append( "endbfrange\n" + "endcmap\n" + "CMapName currentdict /CMap defineresource pop\n" + "end end\n"); String s = buf.toString(); PdfStream stream = new PdfStream(PdfEncodings.convertToBytes(s, null)); stream.flateCompress(compressionLevel); return stream; }
/** * Creates a JavaScript action. If the JavaScript is smaller than 50 characters it will be placed * as a string, otherwise it will be placed as a compressed stream. * * @param code the JavaScript code * @param writer the writer for this action * @param unicode select JavaScript unicode. Note that the internal Acrobat JavaScript engine does * not support unicode, so this may or may not work for you * @return the JavaScript action */ public static PdfAction javaScript(String code, PdfWriter writer, boolean unicode) { PdfAction js = new PdfAction(); js.put(PdfName.S, PdfName.JAVASCRIPT); if (unicode && code.length() < 50) { js.put(PdfName.JS, new PdfString(code, PdfObject.TEXT_UNICODE)); } else if (!unicode && code.length() < 100) { js.put(PdfName.JS, new PdfString(code)); } else { try { byte b[] = PdfEncodings.convertToBytes( code, unicode ? PdfObject.TEXT_UNICODE : PdfObject.TEXT_PDFDOCENCODING); PdfStream stream = new PdfStream(b); stream.flateCompress(writer.getCompressionLevel()); js.put(PdfName.JS, writer.addToBody(stream).getIndirectReference()); } catch (Exception e) { js.put(PdfName.JS, new PdfString(code)); } } return js; }