c# dll generated pdf file is damaged -


i using itextsharp write pdf file in c#. have created classlibrary project , referenced in windows application. dll created pdf file when called, when open pdf file view says there error opening document. file damaged , not repaired.

here dll code create pdf file

public class class1 {     public void createpdf()     {         // orignal         string filename = "desktop\\test_" + datetime.now.tostring("yyyymmddhhmm") + ".pdf";         filestream fs = new filestream(filename, filemode.create, fileaccess.write, fileshare.none);         document doc = new document(pagesize.a4, 10, 10, 10, 10);         doc.setmargins(10, 10, 10, 10);         pdfwriter writer = pdfwriter.getinstance(doc, fs);         doc.open();         doc.newpage();          basefont bftimes = basefont.createfont(basefont.times_roman, basefont.cp1252, false);         itextsharp.text.font times = new itextsharp.text.font(bftimes, 9, itextsharp.text.font.italic, itextsharp.text.basecolor.red);          itextsharp.text.font font = fontfactory.getfont(fontfactory.helvetica, 9, basecolor.black);         itextsharp.text.font fontsmall = fontfactory.getfont(fontfactory.helvetica, 2, basecolor.black);         itextsharp.text.font fontbold = fontfactory.getfont(fontfactory.helvetica_bold, 9, basecolor.black);          paragraph clientname = new paragraph("client name :" + " " + "client", font);         paragraph date = new paragraph("date :" + " " + datetime.today.toshorttimestring(), font);           doc.add(clientname);         doc.add(date);          lineseparator ls = new lineseparator();         ls.linewidth = 7f;         doc.add(new chunk(ls, font.isbold()));          paragraph some= new paragraph("some data", fontbold);          doc.add(some);          doc.add(new chunk(ls, font.isbold()));          dmtximageencoder encoder = new dmtximageencoder();         dmtximageencoderoptions options = new dmtximageencoderoptions();         options.sizeidx = dmtxsymbolsize.dmtxsymbol18x18;          options.scheme = dmtxscheme.dmtxschemec40;         bitmap qrbitmap = encoder.encodeimage("123456789", options);          itextsharp.text.image qrpic = itextsharp.text.image.getinstance(qrbitmap, system.drawing.imaging.imageformat.jpeg);          qrpic.scalepercent(15f);          doc.add(qrpic);          doc.close();           //system.diagnostics.process.start(filename);     } }

and how calling in windows application

testdll.class1 m = new testdll.class1();         m.createpdf();         messagebox.show("done");

it creates pdf file damaged. please let me know doing wrong , how can fix code.

all things aside if remove current logic creating qr codes - itextsharp supports few different types of qr/barcode creation methods.

aside not making use of using statements following code (along current code) started generating qr/barcodes. i'm not sure want populate qr/barcode i'm unable create exact working copy you, should off ground!

if unclear please let me know , can edit answer provide more clear understanding.

the below code taken official itext docs (originally in java), changed purposes.

          doc.add(new paragraph("barcode pdf417"));         barcodepdf417 pdf417 = new barcodepdf417();         string text = "call me ishmael. years ago--never mind how long "             + "precisely --having little or no money in purse, , nothing "             + "particular interest me on shore, thought sail "             + "a little , see watery part of world.";         pdf417.settext(text);         image img = pdf417.getimage();         img.scalepercent(50, 50 * pdf417.yheight);         doc.add(img);          doc.add(new paragraph("barcode datamatrix"));         barcodedatamatrix datamatrix = new barcodedatamatrix();         datamatrix.generate(text);         img = datamatrix.createimage();         doc.add(img);          doc.add(new paragraph("barcode qrcode"));         barcodeqrcode qrcode = new barcodeqrcode("moby dick herman melville", 1, 1, null);         img = qrcode.getimage();         doc.add(img);

below example of output:

enter image description here


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