Dear all, I am trying to check the underline and overstrike status of characters in a PDF.
I heard that underline and overstrike are achieved by graphical objects in PDF. So I tried to detect the rectangle and line objects first. Based on their position and the bounding box position of characters, I may be able to identify which character is underlined and which is overstrike. I have problem in the first step - detecting position of the graphical objects. ==OUTPUT== PageSize: 0,0 [595,842] RECTANGLE: 0,0.1 [595.2,841.8] LINE: (0,-1.6) - (13,-1.6) LINE: (0,5.1) - (12,5.1) ==OUTPUT== The rectangle here is the page and can be ignored. However, the lines seem to be a different coordinate system to the page. Any idea. Please help. The sample PDF and a code fragment is included for illustration of the problem. UnderAndStrike.pdf <http://itext-general.2136553.n4.nabble.com/file/n4657914/UnderAndStrike.pdf> ==CODE== int pg = 1; iTextSharp.text.Rectangle pgsz = linestamperreader.GetPageSize(pg); Console.WriteLine("PageSize: " + pgsz.Left + "," + pgsz.Bottom + " [" + pgsz.Width + "," + pgsz.Height + "]"); List<string> buf = new List<string>(); byte[] pageBytes = reader.GetPageContent(pg); PRTokeniser tokeniser = new PRTokeniser(new RandomAccessFileOrArray(pageBytes)); PRTokeniser.TokType tokenType; string tokenValue; while (tokeniser.NextToken()) { tokenType = tokeniser.TokenType; tokenValue = tokeniser.StringValue; if (tokenType == PRTokeniser.TokType.NUMBER) { buf.Add(tokenValue); } else if (tokenType == PRTokeniser.TokType.OTHER) { if (tokenValue == "re") { // rectangle float x = float.Parse(buf[buf.Count - 4]); float y = float.Parse(buf[buf.Count - 3]); float w = float.Parse(buf[buf.Count - 2]); float h = float.Parse(buf[buf.Count - 1]); Console.WriteLine("RECTANGLE: " + x.ToString() + "," + y.ToString() + " [" + w.ToString() + "," + h.ToString() + "]"); } else if (tokenValue == "l") { float fx = float.Parse(buf[buf.Count - 4]); float fy = float.Parse(buf[buf.Count - 3]); float x = float.Parse(buf[buf.Count - 2]); float y = float.Parse(buf[buf.Count - 1]); Console.WriteLine("LINE: (" + fx.ToString() + "," + fy.ToString() + ") - (" + x.ToString() + "," + y.ToString() + ")"); } } } ==END== -- View this message in context: http://itext-general.2136553.n4.nabble.com/Problem-is-check-underline-overstrike-status-of-a-character-in-PDF-tp4657914.html Sent from the iText - General mailing list archive at Nabble.com. ------------------------------------------------------------------------------ Own the Future-Intel® Level Up Game Demo Contest 2013 Rise to greatness in Intel's independent game demo contest. Compete for recognition, cash, and the chance to get your game on Steam. $5K grand prize plus 10 genre and skill prizes. Submit your demo by 6/6/13. http://p.sf.net/sfu/intel_levelupd2d _______________________________________________ iText-questions mailing list iText-questions@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/itext-questions iText(R) is a registered trademark of 1T3XT BVBA. Many questions posted to this list can (and will) be answered with a reference to the iText book: http://www.itextpdf.com/book/ Please check the keywords list before you ask for examples: http://itextpdf.com/themes/keywords.php
